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which 16gb memory card

hi i'm after a 16gb memory card but don't know what class to get, as cheap as possible but it must be from a well known manufacturer

Probably doesn't matter what anyone says - whichever brand person X stands behind, somenoe else will say it failed on them and to go for brand Y.
Having said that, I have a 16gb Kingston class 2 which has been perfect, cost about £25 or so when I got it. Recently picked up the same but a class 10. That one was about £80 including shipping as I wanted to see the speed difference, etc.
Not sure what others people will swear by. I don't swear by Kingston, but I have yet to have one go bad on me...

isaw said:
Probably doesn't matter what anyone says - whichever brand person X stands behind, somenoe else will say it failed on them and to go for brand Y.
Having said that, I have a 16gb Kingston class 2 which has been perfect, cost about £25 or so when I got it. Recently picked up the same but a class 10. That one was about £80 including shipping as I wanted to see the speed difference, etc.
Not sure what others people will swear by. I don't swear by Kingston, but I have yet to have one go bad on me...
Click to expand...
Click to collapse
And was the Class 10 worth it for speed?
I've used both Kingston and Sandisk in the past - and currently have a 8GB Class 6 Sandisk in my desire. It's been just fine.
I'd like to make the leap to a 32GB card, but I'm slightly concerned the Class 2 one available might have issues. (Although I've read many contradicting posts on that subject too!)

@TractorMatty
Between an older 16gig class 2 and the 16gig class 10 yes - galleries rendered much quicker, seemed more responsive, etc.
But between a class 6 and a class 10... meh. Not worth it at the moment.

Does it matter what class you get? Because so far I can only find a 16bg class for over just £20.

Using Team Group 16GB microSDHC Class 6.
Got it from ebay

Go for Classe 6 it's almost like a C10, but cheaper (and you won't really notice any difference).

KameoRE said:
Go for Classe 6 it's almost like a C10, but cheaper (and you won't really notice any difference).
Click to expand...
Click to collapse
And you won't with a decent Class 2 either!
Sent from my HTC Desire using XDA App

Well, i can tell the diff between my shipped in Desire's Samsung 4G Classe 2 and my previous Sandisk 8G Classe 4... My Classe 4 is faster.

I got a 8gb class 4 Kingston.. its fast enough for me...
Sent from my Desire using XDA App

I took the risk and tried the 32gb, online for $40au... failed miserably and still scarred by the copious time spent trying to copy, format, reformat, copy... with most ending up in the lost.dir (except for 1.2gb that ended up working).
Since then, have got a 16gb SanDisk. It's only a Class 2, but haven't had any issues with speed whether it be reading or writing. Avi's play in sync... Good bang for the buck.
Mind you, I only went for SanDisk because they were always good to me in the standard SD days, but have heard plenty of good word on Kingston and Lexar.

32gb on ebay are 75% fakes.

I just got my Kingston 16gb Class 10 card. Do you guys think my card reader's speed is maxed out and it might be able to go faster than this?

I'll be getting THIS ONE when they get it back in stock.

Well, just got a Kingston 16Gb class 10 and can't use it, because it's defective .
But I'm not blaming Kingston, it can happen with any brand and I'm gonna exchange it... Hopefully I have a Sandisk 16Gb class 2, a not-very-fast-but-working-SD-card....

Teppic24 said:
I'll be getting THIS ONE when they get it back in stock.
Click to expand...
Click to collapse
Is this website reliable for the quality of the card? it will be 100% original?

dorittos said:
Is this website reliable for the quality of the card? it will be 100% original?
Click to expand...
Click to collapse
i've ordered that card so will let you know what its like when it arrives

i got mine from ebay (team class6 16gb)
no issues so far

Just to share with you I gotten myself the Toshiba 16GB Class 4 MicroSD in HK about 44USD
A bit on the high side, but the card is made in Japan
Working fine (using A2SD+) till now

dorittos said:
Is this website reliable for the quality of the card? it will be 100% original?
Click to expand...
Click to collapse
very respectable web site. selling genuine items

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...
Click to expand...
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!

looking for class 6 and above owners

hi.
i'm trying to find out how fast can the i9000 write to the sd card.
so if you own a class 6 or class 10 card i want to know how fast does it write while being connected directly to the computer (no use of an adapter).
please write the card model and the writing speed
thank you

None have this cards? No way..
Sent from my GT-I9000 using XDA App

there were test results posted before
just do some searching, this was discussed many many times

Are there any class 6 micro sd cards?
I haven't come across any of them yet.

Actualy i did search...but couldent find anything about it...not only on xda....
Can u please post a link?
Sent from my GT-I9000 using XDA App

sgsI9003 said:
Are there any class 6 micro sd cards?
I haven't come across any of them yet.
Click to expand...
Click to collapse
Class 6
http://shop.ebay.com.au/i.html?_nkw=microsd+32gb+class+6&_sacat=0&_odkw=microsd+32gb+class+10&_osacat=0&_trksid=p3286.c0.m270.l1313
why go class 6 when there is:
Class 10
http://shop.ebay.com.au/?_from=R40&_trksid=p3692.m570.l1313&_nkw=microsd+32gb+class+10&_sacat=See-All-Categories
But honestly, I'd rather have a kingston/sandisk class 4 than a generic class 10 brand. That's a lot of data to lose if something goes wrong. Besides, based on reviews, Sandisk underrates their cards. my 16gb class 4 sandisk is actually benchmarked as a class 6.
here: Class 4
http://shop.ebay.com.au/i.html?_nkw=microsd+32gb+class+4&_sacat=0&_dmpt=AU_Electronics_Memory_Cards&_odkw=microsd+32gb+class+6&_osacat=0&_trksid=p3286.c0.m270.l1313
If the links dont work, just search them up on EBAY. Sorry my search results are australian based. Just change it.

if you use Apps2SD you definitely want a minimum a Class 6 card
ideally get a Class 10, you can easily feel (time) the difference between a class 4 vs class 6 in real life usage

I have a Class 6 16gb card,transfer rate on windows 7 between 5mb and 7mb sometimes don't have enough time to convert a movie and just copy the 2.5gb or 4gb the movie str8 to sd card and the phone plays it flawless if you're a camera addict or just want a good SD Card buy a Class 6 or above some users are ok with class 1 to

I have 16GB class 10. Actual speed when writing on it from my laptop hard-drive through USB cable is 6-8 MB/sec.

fransarj said:
Class 6
http://shop.ebay.com.au/i.html?_nkw=microsd+32gb+class+6&_sacat=0&_odkw=microsd+32gb+class+10&_osacat=0&_trksid=p3286.c0.m270.l1313
why go class 6 when there is:
Class 10
http://shop.ebay.com.au/?_from=R40&_trksid=p3692.m570.l1313&_nkw=microsd+32gb+class+10&_sacat=See-All-Categories
But honestly, I'd rather have a kingston/sandisk class 4 than a generic class 10 brand. That's a lot of data to lose if something goes wrong. Besides, based on reviews, Sandisk underrates their cards. my 16gb class 4 sandisk is actually benchmarked as a class 6.
here: Class 4
http://shop.ebay.com.au/i.html?_nkw=microsd+32gb+class+4&_sacat=0&_dmpt=AU_Electronics_Memory_Cards&_odkw=microsd+32gb+class+6&_osacat=0&_trksid=p3286.c0.m270.l1313
If the links dont work, just search them up on EBAY. Sorry my search results are australian based. Just change it.
Click to expand...
Click to collapse
what do you think of Kingmax?
http://cgi.ebay.com/Kingmax-16GB-16...emory_Cards&hash=item2eb3693d51#ht_2062wt_825
alijanismayilov said:
I have 16GB class 10. Actual speed when writing on it from my laptop hard-drive through USB cable is 6-8 MB/sec.
Click to expand...
Click to collapse
what brand is it?

I have a Transcend 4gb class 6 card, it averaged ~7.4mb/s from my laptop by the micro usb cable.

tizaktizak said:
what do you think of Kingmax?
http://cgi.ebay.com/Kingmax-16GB-16...emory_Cards&hash=item2eb3693d51#ht_2062wt_825
what brand is it?
Click to expand...
Click to collapse
I do not know what brand but it says - Micro SD HC class10 . Bought it from EBAY more than 3-months ago, still working and really fast. I have all my music 13gb on it because I am listening this music in my car through the Bluetooth car-stereo. I had slower card class 6 and it was lagging when listening music, but not anymore. Hope this info was helpful.

alijanismayilov said:
I do not know what brand but it says - Micro SD HC class10 . Bought it from EBAY more than 3-months ago, still working and really fast. I have all my music 13gb on it because I am listening this music in my car through the Bluetooth car-stereo. I had slower card class 6 and it was lagging when listening music, but not anymore. Hope this info was helpful.
Click to expand...
Click to collapse
Your card should write faster..it's class 10 witch means a minimum of 10MB per second....this is y i want to know the brand of it...so i can avoid this cards.
Sent from my GT-I9000 using XDA App

do not buy microSD cards from ebay 90% of the time are fakes speed, or fake size or fake both

AllGamer said:
do not buy microSD cards from ebay 90% of the time are fakes speed, or fake size or fake both
Click to expand...
Click to collapse
My Lexar Class 10 32GB from Amazon UK certainly writes as it should. I am getting the occasional glitch after writing to it from my Mac - not sure if it is the card or the SD card management. Not a major issue at the moment - wait and see if it gets worse.

Amazon is safer than eBay that's for sure, as long as you buy only the ones that are sold by "Amazon" itself, not the "others" cheaper retailers
back then i purchased some collector DVDs, and they sent me fake ones, but i paid for original ones, of course i though the cheaper available ones were also legit, but boy was i wrong
since then i learned to not pick any of the sellers on Amazon, and buy from Amazon retail only

i just tested my sandisk 16gb class 4 with crystaldisc mark..
i get 5.9MB from the adapter but only 3.2MB from the phone
y is it like this?

AllGamer said:
Amazon is safer than eBay that's for sure, as long as you buy only the ones that are sold by "Amazon" itself, not the "others" cheaper retailers
back then i purchased some collector DVDs, and they sent me fake ones, but i paid for original ones, of course i though the cheaper available ones were also legit, but boy was i wrong
since then i learned to not pick any of the sellers on Amazon, and buy from Amazon retail only
Click to expand...
Click to collapse
On Ebay depends on the vender you buy, I purchase RAM from Australia to Portugal, and it works fine.
But of course Amazon is faster and more reliable.

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.

[Q] 32GB Micro SD Cards?

Does anyone use a 32GB micro SD in their device? I'm looking to get a class 10 32GB micro SD but I'm not sure what brand/manufacturer to go with or where I can get the best price. Basically, my main priority is to get a safe, reliable, and fast (class 10 preferably) 32GB micro SD. I've never been too educated in the SD memory market, so I was wondering if anyone could help me out. Thanks in advance!

Sandisk is always a good choice. As for class 10, I'm not sure why you need one that speedy. I have 32GB class 2 card and it is plenty fast enough for my g2x.
Sent from my LG-P999 using XDA Premium App

busab said:
Sandisk is always a good choice. As for class 10, I'm not sure why you need one that speedy. I have 32GB class 2 card and it is plenty fast enough for my g2x.
Sent from my LG-P999 using XDA Premium App
Click to expand...
Click to collapse
Oh really? Well that's good to know. (Like I said I'm not too knowledgeable about SD cards.) I'll look up SanDisk on Amazon, I figured they would be a good source. Thanks!
I also found this: http://www.amazon.com/Lexar-MicroSD...1?s=electronics&ie=UTF8&qid=1306885736&sr=1-1 (as far as class 10 ones go) and the reviews seem to be pretty good. Does anyone know if that manufacturer (Lexar) is reliable?

Here's a few good options. I personally have a 32gb wintec class 10, and that cards been a champ since day one. Class 4 cards are good enough especially since i believe android is limited to class 4 speeds
http://www.newegg.com/Product/Produ...30&cm_re=32gb_micro_sd-_-20-139-530-_-Product
http://www.newegg.com/Product/Produ...73&cm_re=32gb_micro_sd-_-20-208-573-_-Product
http://www.newegg.com/Product/Produ...92&cm_re=32gb_micro_sd-_-20-139-392-_-Product
these are are class 10 cards
http://www.newegg.com/Product/Produ...11&cm_re=32gb_micro_sd-_-20-161-411-_-Product
http://www.newegg.com/Product/Produ...47&cm_re=32gb_micro_sd-_-20-220-547-_-Product
http://www.newegg.com/Product/Produ...87&cm_re=32gb_micro_sd-_-20-139-587-_-Product

defiantbeast said:
Here's a few good options. I personally have a 32gb wintec class 10, and that cards been a champ since day one. Class 4 cards are good enough especially since i believe android is limited to class 4 speeds
http://www.newegg.com/Product/Produ...30&cm_re=32gb_micro_sd-_-20-139-530-_-Product
http://www.newegg.com/Product/Produ...73&cm_re=32gb_micro_sd-_-20-208-573-_-Product
http://www.newegg.com/Product/Produ...92&cm_re=32gb_micro_sd-_-20-139-392-_-Product
these are are class 10 cards
http://www.newegg.com/Product/Produ...11&cm_re=32gb_micro_sd-_-20-161-411-_-Product
http://www.newegg.com/Product/Produ...47&cm_re=32gb_micro_sd-_-20-220-547-_-Product
http://www.newegg.com/Product/Produ...87&cm_re=32gb_micro_sd-_-20-139-587-_-Product
Click to expand...
Click to collapse
Thanks a lot! I think I'll go for the wintec class 10 based on your recommendation. That's an interesting observation about Android, but since I'm going to be using the SD card with different devices in the future, I figured I might as well go for the best.

I have a 32gb kingston class 4 and its been running pretty good.

i have two. A class 4 Sandisk and a class 10 Adata. The sandisk seems to work the best. I lost my data on the Adata 3 times and had to return one DOA. While the Adata did have really good speeds it just didnt seem reliable.

Iv never used a 32 but iv had an 8 and a 16 made by A~Data, and have no complaints

dont trust any brands u dont know meng.. there are tonnes of fake cards out there so the best thing to do is to buy from the stores the guys have listed up top.. but if u happen to buy from eBay: here are a list of things to look out for
1) the brand name is Kingston, Sandisk, AData or Lexar - those are known and trusted brands to work with.
2) the class of the disk is displayed on the microSD Card and the class relates to a price - if its a class 10 and its cheap - beware.. safest bet is to go with either a class 4 or a class 6
3) Insure that the Serial number is displayed on the microSD Card.. if you dont see a serial number then ask for one and check via google to insure that it is legit
that is how i got this wicked awesome 32GB Kingston card from eBay for 20 bucks.. i had a 32GB class 10 card from memorex but couldnt make a ext partition with it and thats how i discovered that it was fake

Dane-Elec and Transcend are fine and I am using them in GTab and X10.
I also have Sandisk and using it in G2x.

I have a 32g class 10 from Kingston. It works flawlessly, and you can see the speed improvement. Pick one up here.

Just picked up a ADATA 32gb fron newegg on sale for 49$ + free shipping (Class 4).