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micro sd memory card class

i know that there are different classes of cards: 2, 4, or 6 but what are the main idifferences and will it effect my phone in anyway if i get a 2 compaired to 6?

Heard that Class 4 is the optimum for the Nexus one...anything more than class 4 it wont make a lotta difference.

I can tell you I have an 8g Sandisk Class2 and an 8g Transcend Class6. The Sandisk blew it away in speed comparisons. Not all SDs are equal. I wouldn't have believed it but I tested it myself. Yo have to have root and adb but there is a speedtest on Cyanogen's forums. I tested each 3 times and averaged. The Sandisk was faster by a considerable amount. I also think the Class4 would be optimal and would spend a bit extra on the Sandisk.

I just got a 16gb Patriot Class 2 to replace the 4gb Class 2 stock sd card. My response the first time I opened Gallery "OMFG HOLY CRAP". Instead of the typical 3-5 second load I am at about .5-1 second. Write speed is amazing. This card is just fan-damn-tastic.
I can say I tried a Class 6 16gb off-brand prior to this (my dog ate it) and it had none of the characteristics of this current card.
So for my money, before you consider Class, consider Brand / Quality. The better quality cards will always outperform the lesser cards. If you are worried about the Class (transfer/write speed) then get a good brand and higher class...but for me, the Class 2 Patriot is amazeballs.

snlu178 said:
I just got a 16gb Patriot Class 2 to replace the 4gb Class 2 stock sd card. My response the first time I opened Gallery "OMFG HOLY CRAP". Instead of the typical 3-5 second load I am at about .5-1 second. Write speed is amazing. This card is just fan-damn-tastic.
Click to expand...
Click to collapse
hhmm, never heard of Patriot.
I've used SanDisk and Transcend before.
My current one is the stock one that came with the phone.
However, with your "OMFG HOLY CRAP" emotional outburst I'm thinking of researching that brand

I really want a 32 gb microsd card for the n1. Yeah I know its kinda overkill but it would be my card for life really. I just wish there would be a day when I could walk into a best buy and pick one up.

i used patriot ram in my computers, good brand, didnt know they made sd cards, i think ill grab one, right now i have 4gb scandisk class6 seems fast and smooth

I have this one coming...
http://www.ocworkbench.com/2010/KINGSTON/Kingston-Class10-16GB-SDHC-Review/p2.htm
I have no idea if there will be anything worth forking out over for a class 10 card but since my wife has been belly-aching for speedier storage in her video camera I figure I got nothing to lose. Doesn't wow me in the phone it can find a home in her camera. Somebodies got to take one for the team....

ChillRays said:
I really want a 32 gb microsd card for the n1. Yeah I know its kinda overkill but it would be my card for life really. I just wish there would be a day when I could walk into a best buy and pick one up.
Click to expand...
Click to collapse
http://www.sandisk.com/about-sandis...disk-first-to-ship-32-gigabyte-microsdhc-card
They will come. In fact, a webshop here home has put it up for pre-sale allready and has a unconfirmed arrival date June 1st.
price will be here $180 dollars +/-. But will be way cheaper in the states.
http://www.komplett.no/k/ki.aspx?sku=594226
(site is in Norwegian)

The thing that bothers me about Sandisk (besides the price) is even on their own website they don't list what speed class the cards are. On Amazon I can only find class 2 cards. What's up with that? Maybe class 2 would be enough but I'd be more comfortable with class 4 or 6. Do they even make them in that speed?

ChillRays said:
I really want a 32 gb microsd card for the n1. Yeah I know its kinda overkill but it would be my card for life really. I just wish there would be a day when I could walk into a best buy and pick one up.
Click to expand...
Click to collapse
I want one too, but not at their current going rate of $200.
I'll probably end up picking up a 16gb one soon since the 32gb ones aren't in any hurry to get cheaper.

Gallery69 said:
The thing that bothers me about Sandisk (besides the price) is even on their own website they don't list what speed class the cards are. On Amazon I can only find class 2 cards. What's up with that? Maybe class 2 would be enough but I'd be more comfortable with class 4 or 6. Do they even make them in that speed?
Click to expand...
Click to collapse
On amazons search I typed in 16 GB class 6 micro SD and it pulled some up along with a passel of other sd cards.

The class # classification has merit behind it. But unfortunately cheap manafacturers are abusing the system.
I bought a sandisk 16gb class 2 card not too many weeks after it appeared on the market as the first 16gb card. Never have i wanted for more speed. Songs load up instantly in the music player and the gallery has no lag at all. Don't fall victim to high class # claims. Just go with a manufacturer that you know and trust. For me that's sandisk.

im already sending back my first class 10 card.bought it from newegg but had to get kingston to replace.had problem with corrupt data and making my nexus go loopy.kingston replaced it without any hassles.
krabman said:
I have this one coming...
http://www.ocworkbench.com/2010/KINGSTON/Kingston-Class10-16GB-SDHC-Review/p2.htm
I have no idea if there will be anything worth forking out over for a class 10 card but since my wife has been belly-aching for speedier storage in her video camera I figure I got nothing to lose. Doesn't wow me in the phone it can find a home in her camera. Somebodies got to take one for the team....
Click to expand...
Click to collapse

hey guys i stay in dubai and i have searched the computer vendors and they only have sandisk class 2 cards and nokia's class 4 cards so if i buy nokia's class 4 mu 44 will it function properly if i want to install app2sd?

Not sure why i cant find it on the bestbuy website but i know its still there at the store bc i seen them there again just a few days ago, i bought mine a few months ago but anyways i found a PNY 4 gig class 6 HC-->high capacity i think, its in the camera section and sells in the black and red pack, not the black and gold one they also have. I bought mine regular price $22.99 which isnt too bad for not buying it on the web. It made my G1 songs and pics load blazing fast and ive since replaced my stock nexus card and have noticed a night and day difference on certain things pertaining to sd. just thought id share what i thought was a good deal. Later, veritas
also wanted to add that ive prolly reformated with parted literally between 100-175 times and really no slower rates on anything and barely a smidge shaved off the top

Kingston SD cards

Has anyone here had any experience with kingston sd cards? Just bought a class 4 16g card from newegg for 35 including shipping.. The reviews were pretty good and I know theyre a pretty big company so I think i'll be ok but wanted to see if anyone here could confirm or deny this
*I'm just sayin...

ive got a pny 16 gig, and it works great. i know kingston makes good ram, so id imagine that a kingston sd card would be worth its money, and i cant see a big brand memory product being garbage, especially in 2011. that price is a win no matter what though.

How much was the card? I would love a bigger card. And what did y'all do to transfer memory from one card to the next?
Sent from my HTC Vision using XDA App

If you have the moola, get this from Newegg, it's Class 10 so faster speed
WINTEC 32GB Micro SDHC FileMate Mobile Professional SDHC Model 3FMUSD32GBC10-R
It's around $82.49 with free shipping.

I've read a few reviews on Wintec cards, and not a lot of them are good. They work fine at first, then start to degrade quickly. To top it off, people say that when they try to get it replaced through Wintec, Wintec claims that its user error or abuse.

PatrickHuey said:
How much was the card? I would love a bigger card. And what did y'all do to transfer memory from one card to the next?
Sent from my HTC Vision using XDA App
Click to expand...
Click to collapse
He said in the OP that its $35 and free shipping.

I have 16GB for two years already and now i bought 32 gb ... both are working well so far.

16gb are going from $22-$35 shipped right now - class 10 speeds. Pick one up if you are using the stock 8gb. I just ordered one myself.

I've used two different Kingston SD Cards. They worked well for me without any issues. My previous was an 8gb Kingston class 4 and I currently have a Kingston 16gb Class 4 card.
The 8GB is nearly 2 years old and is working just fine. Have used it in multiple cell phones and currently serves as a flash drive for work using an adapter. The 16gb works just as well with some added space.

icce007 said:
If you have the moola, get this from Newegg, it's Class 10 so faster speed
WINTEC 32GB Micro SDHC FileMate Mobile Professional SDHC Model 3FMUSD32GBC10-R
It's around $82.49 with free shipping.
Click to expand...
Click to collapse
I heard to many horror stories about wintecs... I wanted somethin reliable
*I'm just sayin...

gbarayah said:
I've used two different Kingston SD Cards. They worked well for me without any issues. My previous was an 8gb Kingston class 4 and I currently have a Kingston 16gb Class 4 card.
The 8GB is nearly 2 years old and is working just fine. Have used it in multiple cell phones and currently serves as a flash drive for work using an adapter. The 16gb works just as well with some added space.
Click to expand...
Click to collapse
Yea I went with the class 4 as from whhat I've heard anything higher doesn't yield much results (at least in a cell phone) but its working nice so far
*I'm just sayin...

I've also heard bad reviews about the wintec cards too. Let us know what you think about the Kingston.
Sent from my HTC Vision using XDA App

I bought a Kingston 8GB Class 4 MicroSDHC for my previous phone, the Nexus One, a year ago and I was very satisfied with it. It's way cheaper than the Sandisks and it works great so yeah, highly recommended!

ctraywick1 said:
Yea I went with the class 4 as from whhat I've heard anything higher doesn't yield much results (at least in a cell phone) but its working nice so far
*I'm just sayin...
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Click to collapse
From my experience I would have to agree on the class. To be honest, I think even a quality class 2 card would do just fine on a mobile device.
The class is an indication of the minimum Write Speed (class 4 = 4mb/s class 6 = 6mb/s, etc) The Read speed is generally much higher than that, so even if you are running applications from the SD card, performance shouldn't be hindered by a lower class card.
The only instance I can think of that performance would be affected is if you record a lot of 720P video with your phone. In that case, a faster write speed *Should* help with stuttering issues.
Now if we were talking about a high end SLR camera, then hell yes, speed makes a huge difference. I run a Kingston Class 6 in my SLR and it handles everything just fine, including HD video.
Just my 2 cents...

Well,
What it really comes down to is how fast the SD card adapter is in our phones, which I haven't figured out yet. If it'll fully utilize a class 10 card in terms of max write speed, then I would totally go for a class 10 card.
Can anyone verify the max speed our phones could support? (No guesses, please)
Sent from my HTC Vision using XDA App

I like Samsung cards personally. The performance has always been well above it's rated speed, and I've never had one corrupt/fail on me.
When you have a spare 10mins then give this a read:
http://www.bunniestudios.com/blog/?p=918

Newegg says shipping is $9.99

convolution said:
Newegg says shipping is $9.99
Click to expand...
Click to collapse
Must have been a promotion. My shipping was free. ANd to update everyone else it works like a charm. Dont really notice anything as far as normal phone function because I dont store apps on SD but My Titanium, Nandroid, and Just general SD backups to the PC are noticably faster.

Kingston is dead to me...
So, used to be a big proponent of Kingston, but they've seriously slipped over the last couple years (and not just flash, I've had major problems with their desktop memory, too, but that's a story for another forum). I bought the SDC4/32GB from Newegg. Supposed to be 32GB class 4 card. Wow. First one they sent wrote at 2MBps, read at 3MBps. Sent it in for a replacement, and I got one that wrote at 3MBps and read at 3.5MBps. Tried formatting it with my phone, with the official sdformatter utility, with Windows, with Linux, nothing helped. Third replacement was back down to 2/3MBps. Hardly class 4. And no, it wasn't my device or anything like that. I've got an actual class 4 8GB Sandisk card that came stock with my phone, and it does 5/7MBps on the same devices on which I tested the Kingston. And the Sandisk can record 720p without stuttering. Recordings from the Kingston were like watching a slideshow.
Very much done with that. Sent it back (again), got a refund, and now I've ordered that class 10 Wintec 32GB. Curious to see how it performs, and I'll stress it right away to see how it handles in the long run (do a bunch of writes and reads the first week to make sure it won't crap out right away). I'll report back here with my results, but they can't be worse than the Kingston. And from what I've read, it may be hit or miss, but when I get a hit, it'll be a class 10!

SD card recommendation?

I never bought one before.... so, please recommend me a solid performer.... and price does not really matter but I always like the price/performance ratio..... 16-32 is fine.
Thx.
Sent from my Desire HD using XDA App

i just picked up this 32GB one, works great, says its a class 4, but im getting class 6 speeds.
http://www.amazon.com/gp/product/B003WGJYCY

cool, thanks.

it really is down to the class speeds, if it's too slow then it will be a pain to use (ie the stock one)

http://cgi.ebay.co.uk/DURACELL-MICRO-SD-16GB-16GB-SHDC-SD-MICRO-/260776121035?pt=UK_AudioTVElectronics_PDAsAccessories_MemoryCards&hash=item3cb777d2cb
quite reasonable

I always recommend anything class 6 or 10 if size bigger than 4 gb or you will suffer when transferring files
Sent from my Desire HD using Tapatalk

Scandisk 16gb class 6
Sent from my Nexus One using XDA App

What about this one:
http://cgi.ebay.co.uk/16GB-16-GB-Mi...emoryCards&hash=item19c3e991e2#ht_2095wt_1139
or:
http://cgi.ebay.co.uk/16GB-CLASS-10...emoryCards&hash=item1c18d64419#ht_2693wt_1139

kevinm2k said:
What about this one:
http://cgi.ebay.co.uk/16GB-16-GB-Mi...emoryCards&hash=item19c3e991e2#ht_2095wt_1139
or:
http://cgi.ebay.co.uk/16GB-CLASS-10...emoryCards&hash=item1c18d64419#ht_2693wt_1139
Click to expand...
Click to collapse
I would completely avoid using ebay for SD cards! They are alot cheaper but you will be lucky to get a genuine card, Ive heard that over 90% are fake. Often you will be lucky to get 2GB on a card and it will probably break within a week.
"This is a brand 16GB Class 10 Micro-SD memry card and comes supplied with a full sized SDHC adaptor and comes in a memory card case with no other retail packaging. All of our memory is 1000% genuine. This 16GB memory cards use Intel memory chips.
Please note: printing on the memory card may differ slightly from our image."
wow 1000% genuine. that's a whole 10x more genuine than an actual genuine one!
I might be cynical but if the seller uses bad English and grammar in his advert I would be careful! Also if they are genuine cards why would the printing differ?
Best spending a little extra and buying from a trustworthy website.

I am using a patriot class 10 16gb off amazon for £26 which I'd recommend without hesitation

The joyflash one looks more legitimate as they are a known company.
However that patriot one just posted is cheaper.
What difference do the brands make I know sandisk and kingston are the best known, but what differences is there between them 2 and the joyflash and patriots?

I've used Sandisk, Kingston and a couple of other ones in my desire HD and best one I have found so far is Lexor 16gb class 4 , quite fast for copying files, HD video records without stuttering and for £14.99 off play it was a bargain

Remember that class speeds are a minimum, known brands are more likely, in my experience, to understate the class thus you know a sandisk class 6 card is going to be a fair bit faster than a no make class 6

I've got a 16 GB SanDisk microSD Card in my DHD.
It's reliable, cheap and the speeds are descent.
I would post you a link to amazon.com, but it looks like I am not allowed to do this right now with my few posts^^

Adata 16Gb Class 10

Just spotted this one:
http://www.lowpricememory.co.uk/inov8-16gb-micro-sd-card-class-10-c-29-p-868
Looks quite cheap, anyone had any experience with that brand?

ghostofcain said:
I am using a patriot class 10 16gb off amazon for £26 which I'd recommend without hesitation
Click to expand...
Click to collapse
Sounds interesting. I was thinking about 64GB but can't find patriot nor any other at a reasonable price. Top capacity is 32GB at least for patriot class 10. Is there any known limit for class 10?

wander_jarra said:
Adata 16Gb Class 10
Click to expand...
Click to collapse
+1
I'm using one of these and for 30 Euro you will hardly get anything better. Don't expect any super performance though, it performs exactly as advertised: ~11MB/s write speed.

Why do you need such fast sd cards? How oftern do you plan on transfering large files in a hurry? Personally when I transfer something from my phone I just leave it charging while it does it. What's the hurry? You can still use your phone while it's doing it.

8igdave said:
Why do you need such fast sd cards? How oftern do you plan on transfering large files in a hurry? Personally when I transfer something from my phone I just leave it charging while it does it. What's the hurry? You can still use your phone while it's doing it.
Click to expand...
Click to collapse
I would hazard a guess it's more about apps2sd and dalvik2sd. Whilst I personally think that on this phone apps2sd is something that isn't worth bothering with, if you are then you want the fastest card you can get to avoid lag.
I forget who said it but I saw recently the comment "you all moaned when you had no internal storage so we got 1GB now no one wants to use it".
I agree though Dave, when I'm doing SD backups to PC I use it as an excuse to grab yet another brew.

Best 32GB Micro SD for Infuse

Hello...
What do I need to look for when purchasing a 32GB Micro SD card for the Infuse? A specific "class"? Speed? Etc?
Thanks...
Brian

I've read good things on sandisk 32 class 2 & 4. Im using a 16gb class 6 that I got from bb for 35 bucks. Works great.
Sent from my SAMSUNG-SGH-I997 using Tapatalk

Anything not sold over ebay or amazon 3rd parties!

Does class really matter for a phone like the Infuse? I've read conflicting reviews, saying that anything over class 2 doesn't provide any benefit to the Infuse, and others who swear that anything below Class 6 is terrible for the Infuse. Are there any official stances on this?

I purchased the SanDisk 32GB Micro SDHC Flash Card Model SDSDQM-032G-B35N
and it is a class 2.
I copied the contents of my 16GB card to it and rebooted the phone. I'd say for the next 12-18 hours, it was very slow and choppy. But after that, and to this moment, it is working just fine.
Wonder what the slow down was after the initial install of it?

garak0410 said:
I purchased the SanDisk 32GB Micro SDHC Flash Card Model SDSDQM-032G-B35N
and it is a class 2.
I copied the contents of my 16GB card to it and rebooted the phone. I'd say for the next 12-18 hours, it was very slow and choppy. But after that, and to this moment, it is working just fine.
Wonder what the slow down was after the initial install of it?
Click to expand...
Click to collapse
I'm looking to get the SanDisk class 2 32gb. Is it still acting fine for you? I also seen PNY class 10's "for tablets" for about $10 cheaper than the sandisk is. Wondering if I should go for that or stick with the SanDisk.

Happy with my class 2 32G SanDisk for the last two years
I've used it in a BB Bold, then the Captivate when it came out, and now on the Infuse.
It has always worked great, I manly use it for music storage, but also have about 6G of maps ( for using the GPS outside cell reception).
I'm very happy with it.

terra-starr said:
I've used it in a BB Bold, then the Captivate when it came out, and now on the Infuse.
It has always worked great, I manly use it for music storage, but also have about 6G of maps ( for using the GPS outside cell reception).
I'm very happy with it.
Click to expand...
Click to collapse
Awesome. I think what I would use it for mostly is music and movies...The internal space should be plenty for apps/pics.

Dang, I didn't know of any 32 gb sd. I picked up a 16 a few weeks ago...thought it was the biggest.
Sent from my SAMSUNG-SGH-I997R using XDA Premium App

bella92108 said:
Does class really matter for a phone like the Infuse? I've read conflicting reviews, saying that anything over class 2 doesn't provide any benefit to the Infuse, and others who swear that anything below Class 6 is terrible for the Infuse. Are there any official stances on this?
Click to expand...
Click to collapse
not sure how fast the infuse can read but i can tell you in actual benchmarks it is posible to have a class 2 read as fast as a class 6, many cheaper cards are faster than they are rated. also im pretty sure android is designed to minimize i/o. i guess it all depends on the complexity and size of the apps you run off of it and how fast the phone is. when someone says a class4 is good they are basically saying dont waist your money. i tend to agree with that.

I highly doubt the controller in the Infuse has a maximum transfer rate that even comes close to class 6 or maybe not even class 4. The only advantage to the high speed cards is if you put the card in your PC and copy files to it (assuming your SD reader can even handle the higher rates).
That being said I bought the A-Data class 10 16GIG because it was only $20 after coupon a couple weeks ago from Meritline but I have no doubt a class 4 or even 2 would be just fine with no noticeable performance difference.
It's no different that putting a SATA3 drive on a SATA2 controller.

MisterEdF said:
I highly doubt the controller in the Infuse has a maximum transfer rate that even comes close to class 6 or maybe not even class 4. The only advantage to the high speed cards is if you put the card in your PC and copy files to it (assuming your SD reader can even handle the higher rates).
That being said I bought the A-Data class 10 16GIG because it was only $20 after coupon a couple weeks ago from Meritline but I have no doubt a class 4 or even 2 would be just fine with no noticeable performance difference.
It's no different that putting a SATA3 drive on a SATA2 controller.
Click to expand...
Click to collapse
yeah I may just go with the Sandisk 32gb class 2. It's about $12 more expensive than the Adata 32GB class 10's but those are sold out at the moment and Sandisk is a better company IMO anyway.

I've been using a Transcend 32GB Class4 Micro SDHC from newegg. It's amazing! It works great! Fast, large and just straight up works with the phone. Formatted memory for me is 31.6 gigs. Highly recommend it.

Adata 32GB Class 10 in my GS2, Infuse and Berry, no complains here. Transfer speeds much better than Class 2 card that came with phone...at least for my Berry that i regularly use transferring files for work.

MisterEdF said:
I highly doubt the controller in the Infuse has a maximum transfer rate that even comes close to class 6 or maybe not even class 4. The only advantage to the high speed cards is if you put the card in your PC and copy files to it (assuming your SD reader can even handle the higher rates).
That being said I bought the A-Data class 10 16GIG because it was only $20 after coupon a couple weeks ago from Meritline but I have no doubt a class 4 or even 2 would be just fine with no noticeable performance difference.
It's no different that putting a SATA3 drive on a SATA2 controller.
Click to expand...
Click to collapse
Exactly this. Someone over in the HD2 section ran several VERY thorough tests confirming that there's very little difference in a class 2 or class 10 card unless you put the card in an adapter directly.

Fee454 said:
I'm looking to get the SanDisk class 2 32gb. Is it still acting fine for you? I also seen PNY class 10's "for tablets" for about $10 cheaper than the sandisk is. Wondering if I should go for that or stick with the SanDisk.
Click to expand...
Click to collapse
Working fine? Depends...on a reboot, it can take 5-15 minutes for my apparently to appear. Manage Applications can take the same amount of time. And Market apparently are suddenly getting stuck in perpetual downloading.
But the apps launch and run fine. I have no idea if it is the card or not.
Sent from my SAMSUNG-SGH-I997 using xda premium

Hi don't bump dead threads. Thanks.

Sandisk 32GB too slow!

Just purchased 32GB Sandisk micro SD. To my knowledge Sandisk has only one 32GB micro SD card and it's a class 2. I have had same, but in 8GB capacity. From time to time I copy/backup folders to external SD: Navionics, Epocrates, and TitaniumBackup...up to 460MB. On 8GB it would take a minute or two each, but with new 32GB it takes forever. Both class 2; same manufacturer, but smaller one much faster. Any suggestions?
Infusion of Android

Class it up! Try a class 4 or 6.
nvm: I read later that you mentioned you get a faster speed on a Class 2 8gig than on a Class 2 32 gig. I just need coffee. Ignore my comment

I have a Sandisk 32gb Class 2... and it's slooooow. So I tried a 32GB Class 4, and it's still equally slow. I'm beginning to think it's the device, not the memory card. I'm getting annoyed with how much just having a memory card in the slot slows down the phone. I may just tolerate the internal 16gb and stop using an "external SD" because it's gotten super annoying waiting for it to scan all the time.

I have an adata class 4 32gb and its pretty good copying to and from. I got it from a quality retailer. If you didnt get it from a quality retailer, TEST it with h2testw app on the pc and make sure its real. It will take a long time to test it. Writing will go quick and you wont see any errors, but reading and verifying the writen data will take a lot longer and thats where the errors will show if its truly not a legitimate card.
I got a couple of fakes off ebay that i got refunded for, but these people sell thousands of these things on there and alot of people get fooled because they seem to work fine, UNTIL down the road when you cant read the data and lose a ton of stuff.
If you test it and get no errors on the reading side, you got a slow card and thats all there is to it. Its not the phone becuase it works fine with cards for most everyone. Not many complaints showing up

carhigh said:
I have an adata class 4 32gb and its pretty good copying to and from. I got it from a quality retailer. If you didnt get it from a quality retailer, TEST it with h2testw app on the pc and make sure its real. It will take a long time to test it. Writing will go quick and you wont see any errors, but reading and verifying the writen data will take a lot longer and thats where the errors will show if its truly not a legitimate card.
I got a couple of fakes off ebay that i got refunded for, but these people sell thousands of these things on there and alot of people get fooled because they seem to work fine, UNTIL down the road when you cant read the data and lose a ton of stuff.
If you test it and get no errors on the reading side, you got a slow card and thats all there is to it. Its not the phone becuase it works fine with cards for most everyone. Not many complaints showing up
Click to expand...
Click to collapse
Mine's a legitimate card, that much I know. Best Buy doesn't sell china-models, haha

Correction. It's a Class 4 that I bought from Staples.
Sandisk technical chat was a joke and commented:"Well there is no guaranteed read and write speed. Still you can try formatting it with a tool called HP Tool"
My response:"Your comment could be construed as a copout. I believe everyone should have the guarantee that when same manufacturer produces a product and one is classed to have double the transfer capability ...... it should perform as such"
Sandisk chat :"I understand but we do not have any read and write speed on micro SDHC card"

bluetoothless said:
Correction. It's a Class 4 that I bought from Staples.
Sandisk technical chat was a joke and commented:"Well there is no guaranteed read and write speed. Still you can try formatting it with a tool called HP Tool"
My response:"Your comment could be construed as a copout. I believe everyone should have the guarantee that when same manufacturer produces a product and one is classed to have double the transfer capability ...... it should perform as such"
Sandisk chat :"I understand but we do not have any read and write speed on micro SDHC card"
Click to expand...
Click to collapse
Kudos to you for challenging them... Unfortunately the world is becoming more and more of a marketing-reality. Something can be marketed as anything. AT&T decided they'd rather call their 3G a "4G network" rather than update to 4G... Sandisk decided to call their Class 4 a "Class 4" without any sort of technical evidence of it complying with the standard... and who's going to stand up to them, just like who's going to stand up to AT&T? Very sad state we've gotten to.

bella92108 said:
I have a Sandisk 32gb Class 2... and it's slooooow. So I tried a 32GB Class 4, and it's still equally slow. I'm beginning to think it's the device, not the memory card. I'm getting annoyed with how much just having a memory card in the slot slows down the phone. I may just tolerate the internal 16gb and stop using an "external SD" because it's gotten super annoying waiting for it to scan all the time.
Click to expand...
Click to collapse
Wait, are you saying that if one removes the external SD card that no scanning takes place?!?! If so that bish will be out of there in a hot minute! 2GB isn't worth the headache.

Yes class 2 is like the 3200rpm hard disk. Back in 1990's. Get class 6. I have class 10 it's very fast.
Sent from my SAMSUNG-SGH-I997 using XDA Premium App

rjan22 said:
Yes class 2 is like the 3200rpm hard disk. Back in 1990's. Get class 6. I have class 10 it's very fast.
Sent from my SAMSUNG-SGH-I997 using XDA Premium App
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Is the Infuse able to take advantage of the Class 10? I thought I read somewhere anything above Class 6 reads the same on modern smartphones. Anyone have real world experience using infuse with class 2 vs 6 vs 10?

carhigh said:
TEST it with h2testw app on the pc and make sure its real.
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Tested it and it came back 10.44 Mbs read/4.66 Mbs write. This was after formatting it with HP Tool. That is within spec for Class 4, but seemed just too slow. I'll try to transfer same files again and share results.
Infusion of Android

I have a class 4 32 gb that's basically empty....
Write: 6.8 mbps
Read: 21.3 mbps
Is that good\bad\indifferent? lol

I'd appreciate those numbers.
Any opinions about PNY all?
Infusion of Android

bluetoothless said:
I'd appreciate those numbers.
Any opinions about PNY all?
Infusion of Android
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Does PNY make Class 10 16 or 32gb cards? In searching on Amazon 32gb Micro SD Class 10, I'm seeing Lexar, and Patriot. The Patriot gets mediocre reviews saying that it dies frequently, and is incompatible with many devices. I'm thinking of buying the Lexar, but I still haven't seen anyone post any better read\write speeds, so I'm wondering if the Samsung can even read\write faster than class 4.

PNY 16 GB class 10 at Costco.com $29.99
Infusion of Android

bluetoothless said:
16 GB class 10 at Costco.com $20.99
Infusion of Android
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That's a good deal... wonder if they have it in-store or only online?

Only online. Recent shipments to stores are 8GB Sandisk class 4. No other choices.
I flubbed on price $29.99
Infusion of Android

bluetoothless said:
Only online. Recent shipments to stores are 8GB Sandisk class 4. No other choices.
I flubbed on price $29.99
Infusion of Android
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Aww, I just think I'd regret only going 16GB... if there are 32GB available, I think I'd be regretting it in a week if I bought a 16GB.

Try newegg.com they have very good prices, good reviews and a great return policy.

rsrocket said:
Try newegg.com they have very good prices, good reviews and a great return policy.
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Wanting to buy @ Amazon... I have $300 in gift cards on Amazon, so need something I can order from them. Not a fan of Newegg as they charge Tax in CA, and their "standard" shipping is slooooow (up to 10 days the last couple orders). I have Amazon Prime free 2 day shipping, and no tax here in CA, so I'm trying to stick with them.