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Comparison J Benchmark test bundle and class10 SD card

Hi- DHD users.
I'm now using Micro SDHC 16GB Class10 made in Teratonic. ( Sold only in Korea )
Bundle of products purchased from Korea all the Micro SDHC 8GB Class4 made in Sandisk.
Was a result of comparing two kinds.
Ah- Please understand, I'm not good at English.
Just to reference.
Bundle(Sandisk 8GB Class4) J Benchmark
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Teratonic 16GB Class10

so there is no differences between class 4 and class 10???
what the hell...

xlxl said:
so there is no differences between class 4 and class 10???
what the hell...
Click to expand...
Click to collapse
I would say its a problem with the card I have class 6 and I can tell the difference between mine and a class 2 and 4 with recording hd off my dhd the class 2 just ain't fast enough the class 4 jumps the class 6 is smooth play back and clear I would say either faulty card or fake class 10
E=Mc2

leith51 said:
I would say its a problem with the card I have class 6 and I can tell the difference between mine and a class 2 and 4 with recording hd off my dhd the class 2 just ain't fast enough the class 4 jumps the class 6 is smooth play back and clear I would say either faulty card or fake class 10
E=Mc2
Click to expand...
Click to collapse
Or the simplest explanation, the DHD hardware is not capable of writing that fast.

leppie said:
Or the simplest explanation, the DHD hardware is not capable of writing that fast.
Click to expand...
Click to collapse
How can you say that ??? When its using a 720p video camera
E=Mc2

leith51 said:
How can you say that ??? When its using a 720p video camera
E=Mc2
Click to expand...
Click to collapse
Even at maximum recording bitrate, it is 10mbit, iow ~1.2Mbyte/sec.
The OP should do some tests on a PC too.

leppie said:
Even at maximum recording bitrate, it is 10mbit, iow ~1.2Mbyte/sec.
The OP should do some tests on a PC too.
Click to expand...
Click to collapse
Well my play back is perfect
E=Mc2

leith51 said:
I would say its a problem with the card I have class 6 and I can tell the difference between mine and a class 2 and 4 with recording hd off my dhd the class 2 just ain't fast enough the class 4 jumps the class 6 is smooth play back and clear I would say either faulty card or fake class 10
E=Mc2
Click to expand...
Click to collapse
Class speeds are minimums so it's quite possible for a top quality class 4 card to out perform a low quality class 10 card, whilst them both conforming to the speed standards, that's why I try and purchase branded cards, and to be fair the class 10 card out performs the class 4 card in all test bar the 8kb test

ghostofcain said:
Class speeds are minimums so it's quite possible for a top quality class 4 card to out perform a low quality class 10 card, whilst them both conforming to the speed standards, that's why I try and purchase branded cards, and to be fair the class 10 card out performs the class 4 card in all test bar the 8kb test
Click to expand...
Click to collapse
And can you tell me of a good 32gb card ????
Sent from my Desire HD using XDA App

Transcend 32 gb class 2 , 60 [email protected]
Read: 10 mbyte/s
Write: 4 mbyte/s
+ lifetime warranty
Sent from my Desire HD using XDA App

Ehrles said:
Transcend 32 gb class 2 , 60 [email protected]
Read: 10 mbyte/s
Write: 4 mbyte/s
+ lifetime warranty
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
Was wanting above class 2
E=Mc2

Ehrles said:
Transcend 32 gb class 2 , 60 [email protected]
Read: 10 mbyte/s
Write: 4 mbyte/s
+ lifetime warranty
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
That's good. Transcend, I like it ..

leith51 said:
Was wanting above class 2
E=Mc2
Click to expand...
Click to collapse
Try Lexar class 10 32GB or Patriot class 10 32GB.

16 GB joyflash class 10 speed test

Hi Guys,
just got a new "16 gb class 10 joyflash micro sd' off of ebay for £18
I used h2test 1.4 with a micro sd adapter to test the speed with the test reading and writing 1GB of data
The test yielded results of 15.5 MB/s write and 16.8 MB/s read.
Are these the sort of results that I should be expecting and should they be good enough for me to use a data2ext etc rom?
Thanks

those speeds look good compared to what ive seen quoted for class 6. i think i'll buy the same as you, good value if its not fake!

I've done a complete test with h2testw and the card is indeed the full 16 GB (minus the space taken up by the fat)
I've also done this test with another card of the same type, from the same seller on ebay, that I bought for a friend and it achieved 15 MB/s write and 18.2 MB/s read. Might have to do a cheeky swap :L

any chance you can post up the item number please?
is it 110661046754 ?

yeh that's the item number of the one i got
http://cgi.ebay.co.uk/16GB-16-GB-Mi...AsAccessories_MemoryCards&hash=item19c3e991e2

just ordered one hope it improves 720p video recording im sick of it jumping evey few seconds on standard class 4 card

if i had known earlier,i bought a class 6 8gig kingston which i'm not satisfied at all guess i'll order one of these next time,thanks for sharing

mat_1_uk said:
just ordered one hope it improves 720p video recording im sick of it jumping evey few seconds on standard class 4 card
Click to expand...
Click to collapse
Ive just done the same. I use A2SD at the mo because i have a standard 8 gb class 4 i think...... crap!! Video recording lags like you said and also transferring albums takes its time too so cant wait to start using D2W
Thanks for your sharing dude!!

No problem guys
Thing is I was reading everywhere, "get this one", "or those ones are rubbish",
Was a bit confused, so kind of just took the leap and was pretty pleased with the speed test results, and the card didn't have a fake size or anything and the price was pretty cheap. Can't argue with that tbh
Im running cyanogenmod 7 rc3 atm, so it's not essentiall I have a fast sd card as the resived hboot partition table gives you loads of space.
Can't wait for a fully working gingerbread rom with sense.
Should be interesting to see what version of sense that htc give the desire gingerbread rom when it's released. Whether it'll be new, or the same one that shipped with froyo? I hope it new. But if it's not there will probably be a good desire hd port etc up in no time (then i'll need an ext partition :L)

This was the best thing I've ever bought... check my quadrant out on miui d2w. With 1 gb ext 4...
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Dude thanx so much for sharing this eBay item. Only took 3 days too.
Sent from my HTC Desire using XDA Premium App

Can't wait for a working gb sense too. Need a cam and hopefully d2w. Ha. Super fast gb sense. Got miui gb at the mo and love it.
Sent from my HTC Desire using XDA Premium App

how on earth can this be so cheap?
bugger, it does not ship to europe, why?

It is true. It's a. Brilliant buy. That's shame :-(
Sent from my HTC Desire using XDA Premium App

can anyone buy it for me and send? i got paypal

If u order it to me I can send on along as I get the postage allowance.
Sent from my HTC Desire using XDA Premium App

I'm not sure how much it would cost to send from here (england) to wherever you guys are in europe. But I don't mind buying one for someone else and sending it.
Haha yeh it is a good buy - and quick delivery
What results are you guys getting speed related? - I'm guessing the most accurate way to do it would be to test it on your computer through an adapter with the program i mentioned in the first post. But i could be wrong

it shouldn't be more then 2-3Ł.....normail cheapest option.

:O MATE i am getting one, nice find by the way! Class 4 is just not the one when it comes to D2SD or anything other than A2SD+....have you tried this with a ROM using d2EXT? or D2SD? what are your experiences if so?

Hi,
I bought the same card from same seller 16gb class 10 sd card. I am running lee droid 2.3 rom with 1gb ext 3. I did my test on my phone using sd card speed test couple of times it is showing my card write speed as 5 MB/s and reading as 14MB/s. Am i missing something here?

Tehe.
ronaldo9_r9 said:
Hi,
I bought the same card from same seller 16gb class 10 sd card. I am running lee droid 2.3 rom with 1gb ext 3. I did my test on my phone using sd card speed test couple of times it is showing my card write speed as 5 MB/s and reading as 14MB/s. Am i missing something here?
Click to expand...
Click to collapse
Yeh, i think basically the speed of your sd card in your phone when using ext partitions can depend on the kernel/how good the d2ext scripts are. I think a good thing to do to test the improvement of the sd card, is to do a quadrant test, and compare the benchmark to when you used last sd card.
Also test it in your computer to get a more accurate read/write speed. (and not through usb from phone because for some reason for me, that's very slow)
Dunno if any of you guys saw this
http://www.xda-developers.com/android/increase-the-reading-speed-of-your-sd-card/
pretty interesting. I haven't got around to doing it

What is the largest microSD card proven on the PhotonQ LTE? details?

Motorola's website says 32gb microSD is the largest supported by the Photon Q LTE and the Droid 4.
But, I have read the Droid 4 is reading 64gb microSD cards.
So, what is the make & model of the highest GB microSD card that's been proven to be read by the Photon Q LTE stock?
Modded?
Method of Modding?
Recommended microSD card and vendor?
Thanks in advance.
These are the 2 I am deciding between on Amazon:
http://www.amazon.com/SanDisk-Mobil...1364805252&sr=1-2&keywords=Sandisk+Ultra+64GB
http://www.amazon.com/gp/product/B0...le_2?ie=UTF8&psc=1&smid=A02211013Q5HP3OMSZC7W

I'm using the SanDisk 32GB Class 10 microSD card you linked to, and it works great. I've read that 64GB cards work, but I don't own one of my own to verify it.

Typically, 64 GB cards will work, they just need to be formatted to FAT32 before the phone will read them. Most/all 64 GB cards on the market are shipped formatted to ExFAT.
Personally, I am using the 32 GB class 10 SanDisk card with no problems.

Using ADATA 32 GB card, class 10, no problems.

I just tried using one of my 64GB class 10 cards this morning. No bueno. I tried formatting as NTFS or exFAT. FAT32 was not an option for formatting a card that size.
So I tried to format it from the phone directly, but it wouldn't do it.
I believe the support for 64GB is in Android 4.1

You have to format it either over a tool like "MiniTool Partition Magic" or use linux.
Microsoft is blocking FAT32 on "too big" external storages...

32gb SanDisk card here.
I think the 64gb story is correct, it will work formatted FAT32. Use basically anything but the built-in Windows utility to format...

samsung 32gb, no problemo.

I am using a 64 gb San Disk. I have been using it since February with no problems. :good:

KyleJDavison said:
I am using a 64 gb San Disk. I have been using it since February with no problems. :good:
Click to expand...
Click to collapse
Thanks for posting.
Did you use it straight out of the box with no modifications?
If you had to modify, please share the steps you had to take.
Please post the part # if it's not this specific Sandisk below:
http://www.amazon.com/gp/product/B0...le_1?ie=UTF8&psc=1&smid=A02211013Q5HP3OMSZC7W
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tt c6 said:
Thanks for posting.
Did you use it straight out of the box with no modifications?
If you had to modify, please share the steps you had to take.
Please post the part # if it's not this specific Sandisk below:
Click to expand...
Click to collapse
You'll have to make sure the card is formatted FAT32. I've heard a lot of the cards larger than 32gb (beyond SDHC) come formatted exFAT.

So, I called Moto Tier 2 tech on the phone and they told me the Micro SD will support Class 10 speeds.
Then, they tell me that 32gb should be the max used.
They said that "If you use a 64gb card, it will cause issues and errors because it will overwhelm the hardward and RAM of the PhotonQ".
I was about to order a Snadisk 64gb Class 10 card, but not I'm not comfortable.
Any thoughts ????

tt c6 said:
So, I called Moto Tier 2 tech on the phone and they told me the Micro SD will support Class 10 speeds.
Then, they tell me that 32gb should be the max used.
They said that "If you use a 64gb card, it will cause issues and errors because it will overwhelm the hardward and RAM of the PhotonQ".
I was about to order a Snadisk 64gb Class 10 card, but not I'm not comfortable.
Any thoughts ????
Click to expand...
Click to collapse
I'm not an expert, but that doesn't make much sense to me. I've never seen that to be the case with anything else, either it works or it doesn't.

I'm also not an expert, but there was a similiar problem on PCs with 32 bit and HDDs with over 2 TB.
Some programs could not use the space over 2 TB or made problems with those HDDs.
Maybe there's a limitation in the ARM architecture?
Can only guess.

Loader009 said:
I'm also not an expert, but there was a similiar problem on PCs with 32 bit and HDDs with over 2 TB.
Some programs could not use the space over 2 TB or made problems with those HDDs.
Maybe there's a limitation in the ARM architecture?
Can only guess.
Click to expand...
Click to collapse
The hard drives over 2.2TB is a problem with the MBR

No, that was not the only problem.
In connection with cryptsetup the "plain" module had also problems.
The "plain64" module have no issues. -> http://code.google.com/p/cryptsetup/wiki/FrequentlyAskedQuestions#5._Security_Aspects (look at 5.15)
As I said, I am not an expert, but if there exists a plain64 (like 64bit?), I assume the old one was 32bit code.
It's just a guess, I don't know exactly, why the problem exists.

Honestly I think this is just Motorola practicing CYA (Cover Your A**). Most end users aren't going to have a clue that an SDXC card needs to be formatted in FAT32 to work with the phone, nor are they going to know that they need a third party utility to do so in Windows. Motorola probably just doesn't want to deal with support issues and unhappy customers when a 64GB card doesn't work out of the box. I see no real reason why it would "stress the hardware" any more than any other SD card, it doesn't require more voltage or amperage.
There is no issue with the ARM architecture, as it handles 64GB just fine on other phones, once the card is formatted to FAT32.

If you are right, then I am sure, that a 64 GB will work.
A friend of mine own such a SD-card (if I remember correctly), I will ask him if I could try it out.
If he owns this SD-card, then he should be using it with a Samsung Galaxy S3, stock firmware.

tt c6 said:
Thanks for posting.
Did you use it straight out of the box with no modifications?
If you had to modify, please share the steps you had to take.
Please post the part # if it's not this specific Sandisk below:
http://www.amazon.com/gp/product/B0...le_1?ie=UTF8&psc=1&smid=A02211013Q5HP3OMSZC7W
Click to expand...
Click to collapse
I apologize for my late reply. I didn't have to do any modifications to it. I am using the one you posted a picture of and have yet to have any problems.

Which 64gb microsdxc card will you get?

Just wondering which 64gb microsdxc cards are you guys looking to use with your new s4? WIth al the issues with the sandisk 64, wondering if it's worth paying the little extra for samsung 64gb pro UHS1 (does the s4 support that speed?) Anyone know?
Also are you guys planning to use exfat? I hear some of the roms w/the old s3 had issues with exfat and needed fat32

Haven't heard of any problems with the s4, pretty sure there will be more info by next saturday

So I ended up getting the samsung 64gb microsdxc UHS1 speed rated, and also bought a USB 3.0 card reader that supports it. I suspect however the s4 (like the s3) will not support the higher UHS speeds:

I ordered the same card yesterday. I think the quality is alot better than sandisk. And even if the sgs4 dont support the full speed. It's still worth the few bugs more.
But maybe it do support it? Will have to wait and see.
Sent from my GT-I9300 using xda app-developers app

the SanDisk Ultra 64 GB MicroSDXC Class 10 works great never given me any problems

djq said:
the SanDisk Ultra 64 GB MicroSDXC Class 10 works great never given me any problems
Click to expand...
Click to collapse
That's also what I have. I've had no problems using it in my Sansa Fuze and Galaxy S.
Sent from my iPad using Tapatalk HD

I'm using Sandisk 64gb sdxc and it is very good. No problems with this card.
Wysłane z Galaxy S3

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Yeah the sandisk is no doubt good enough. But the samsung is faster. But the question is. Does the phone even support the ekstra speed.
Sent from my GT-I9300 using xda app-developers app

Don't you have a promotional deal from Samsung in your country? We, in the Netherlands, get a 64gb c10 sd card from Samsung with the S4.

i really love faster loading apps, though i'm normally limited in how many apps i can store on the sd card... however!
-the faster write speed will definitely come in handy when taking dual shot video
-the faster read speed is definitely worth getting UHS-1 but i doubt that you will notice much difference between the sandisk and samsung versions no matter what you're doing.
still, much thanks for the benchmarks, the samsung card will definitely offer a more future-proof solution

How does the Samsung 64GB MicroSD stack up in terms of speed vs the Galaxy S4 internal memory? Also, is it worth the extra $10 or so for the Samsung version vs Sandisk?

Kapitein187 said:
Don't you have a promotional deal from Samsung in your country? We, in the Netherlands, get a 64gb c10 sd card from Samsung with the S4.
Click to expand...
Click to collapse
Yes, that's also the case for me (also from the netherlands)
But Im currently using a sandisk 64gb class 10 and it also works good in my note2 (formatted as fat32 tho)

testinguser said:
Just wondering which 64gb microsdxc cards are you guys looking to use with your new s4? WIth al the issues with the sandisk 64, wondering if it's worth paying the little extra for samsung 64gb pro UHS1 (does the s4 support that speed?) Anyone know?
Also are you guys planning to use exfat? I hear some of the roms w/the old s3 had issues with exfat and needed fat32
Click to expand...
Click to collapse
djq said:
the SanDisk Ultra 64 GB MicroSDXC Class 10 works great never given me any problems
Click to expand...
Click to collapse
What issues are you referring to, testinguser? I'm using the same card mentioned above in my SIII with no issues.....

http://www.phonearena.com/news/SanDisk-says-it-produced-some-bad-32GB-and-64GB-microSD-cards_id40986

KryptosXLayer2 said:
What issues are you referring to, testinguser? I'm using the same card mentioned above in my SIII with no issues.....
Click to expand...
Click to collapse
my 32gb sandisk was effed in my s3, mounted and unmounted every minute, could take a battery from 100 ~ 30 in an hour with screen off in your pocket.. replaced it with a new one and has worked fine since, there's a visual difference of the memory array on the card, so i think there's a upgraded hw version of the sandisk microsd cards. got my bad one from bestbuy last black Friday
Sent from my GT-I9300 using xda app-developers app

Huh.... strange, I bought mine during Black Friday too, not from BBY though, and hasn't caused any problems! But that's what "a bad batch" means, I wasn't in that batch, thankfully

thats good news!! i have not had a bad card either

testinguser said:
Just wondering which 64gb microsdxc cards are you guys looking to use with your new s4? WIth al the issues with the sandisk 64, wondering if it's worth paying the little extra for samsung 64gb pro UHS1 (does the s4 support that speed?) Anyone know?
Also are you guys planning to use exfat? I hear some of the roms w/the old s3 had issues with exfat and needed fat32
Click to expand...
Click to collapse
I went with SanDisk because I've had the fewest problems with that brand compared to say Sony or PNY. I tried using the card as exFAT and ran into problems. Furthermore, it's incompatible with CWM (due to the Microsoft patent, they can't include support), so I used guiformat to reformat it FAT32, and now it runs smoothly and is visible to CWM. Having so much room at hand is quite liberating.

For what it's worth, the 64GB Samsung Extreme Pro card is $49.99 at your local Frys (if you have one nearby) until 5/23.
http://images.frys.com/art/facebook/newspaperads/051713a_preview/P1_FRI_051713.html
If not, Amazon recently dropped their pricing to $52.98 shipped.
http://www.amazon.com/Samsung-Electronics-microSDXC-MB-MGCGB-AM/dp/B009SK57ZQ

djq said:
the SanDisk Ultra 64 GB MicroSDXC Class 10 works great never given me any problems
Click to expand...
Click to collapse
Picked that up at Radio Shack for $43 before Christmas. Formatted it to fat32 for my Note 2 and popped it in the S4 with no issues.
When I buy another one it'll be SanDisk or Samsung.
Sent from my SPH-L720 using Tapatalk 2

MicroSD. Which one to buy?

I bought a 64Gb MicroSD for little money. It is not brand, but when I copy large amounts of files from the PC (ie music), then when I put it on the phone, the music disappears. This problem can be given by the poor quality of MicroSD? What do you recommend? A MicroSD Samsung Evo may be okay?
Sent from my GT-I9505 using XDA-Developers mobile app

I have made (and still have) good experiences with Samsung, Toshiba and Transcend cards. Rather bad (or mixed) experiences with SanDisk cards. I wouldn't say that SanDisk cards are in general of bad quality - my guess is that there are many fake SanDisk cards on the market.
Currently I'm using a 128 GB Samsung Evo card.
Sent from my black pearl using Tapatalk

Kingston may also be a good option. Using my 32GB Class 10 for well over a year now. Granted, I do not copy much between a PC and the card, but I do move a lot of stuff between the internal storage and the sd card.

Was using a sadisk 16gb card, and now a lexar 32 GB card. Virtually no difference, besides storage space. I find it unnecessary to buy an expensive cardz when I've never had a single problem with the cheaper brands, and not the "top of the line" cards like the overpriced Samsung cards.
Really, go with any brand. I see a lot of articles about certain cards having problems with the s4, but you gotta understand, those are isolated incidences, and the other thousands of people that don't have problems with their SD card and this phone don't go online to complain about them.
Sent from my SGH-M919 using XDA Free mobile app
---------- Post added at 08:18 PM ---------- Previous post was at 08:17 PM ----------
As for your particular problem, might be a problem with the connection between your phone and the PC, and not the SD card.
You should buy a different brand, and see if it does the same thing.
Sent from my SGH-M919 using XDA Free mobile app

The Real SPEED of S4 !!!!!!!!!!!!
I'm a pro of microSD and Galaxy S4.
Hear that :
Galaxy S4 can only read and write on external microSD card at 21,7 Mo/s max !!!!!
So buying a Sandisk Ultra (read : 45, write : 13) would not be a good choice according to me...
You should buy a Sandisk Extreme (read : 90, write : 45), to enjoy a bit more speed, for 3$ more expensive...

I had a bad experience with Lexar ( same for this guy -> https://youtu.be/aO-imP0qTQY
At the moment I'm using samsung EVO+ 128gb and its perfect got it for around 30$US from a store (Best Buy)

SD Cards recommended (and not)
Mostly any BRAND SD cards are recommended. Which ones you ask? Lexar, Kingston, Adata, SAMSUNG. It's going to be sad if you buy a Generic or Off-Brand one. Why? Well, they don't always come with their real capacity (claiming to be 8GB, and they're really 4GB or 2GB), they're REALLY delicate or unreliable, and some are known to not work AT ALL out of box. So yeah, there's the best, VERY-IN-DEPTH guide the world has ever seen. Maybe.

TFutoMaki said:
I had a bad experience with Lexar ( same for this guy -> https://youtu.be/aO-imP0qTQY
At the moment I'm using samsung EVO+ 128gb and its perfect got it for around 30$US from a store (Best Buy)
Click to expand...
Click to collapse
Probably just an isolated incident. Had this lexar for the past 7 mos. and still working flawlessly.
Sent from my SGH-M919 using XDA Free mobile app

I would recommend KIngston at any form

Got a 32Gb Samsung EVO microsd with my S4 3 years ago - it lasted about 6 months before it packed up. What a bunch of crap from Samsung.
Currently using a cheap old class 4 sandisk 16Gb (which was inherited from my old Blackberry 9300 (from back in the day ) now for the past 2 years or so without hassle - smooth sailing! And the sdcard is probably 4/5 years old now!
Moral of the story: Fastest/most expensive/<insert brand name> IS NOT ALWAYS the most reliable/best way to go.

I always use either SanDisk or Samsung EVO/EVO+, never had issues with either.
---------- Post added at 12:07 PM ---------- Previous post was at 11:59 AM ----------
cedric3 said:
I'm a pro of microSD and Galaxy S4.
Hear that :
Galaxy S4 can only read and write on external microSD card at 21,7 Mo/s max !!!!!
So buying a Sandisk Ultra (read : 45, write : 13) would not be a good choice according to me...
You should buy a Sandisk Extreme (read : 90, write : 45), to enjoy a bit more speed, for 3$ more expensive...
Click to expand...
Click to collapse
So what you're saying is that even though the phone can only read @ 21 mb/s MAX, buying a card that has 90 mb/s read speeds somehow makes it faster?

christoophat said:
I always use either SanDisk or Samsung EVO/EVO+, never had issues with either.
---------- Post added at 12:07 PM ---------- Previous post was at 11:59 AM ----------
So what you're saying is that even though the phone can only read @ 21 mb/s MAX, buying a card that has 90 mb/s read speeds somehow makes it faster?
Click to expand...
Click to collapse
Yes, S4 is limited at 20Mo/s in read and 20Mo/s in write,
so no benefits at all with a sdcard with 90Mo/s in read,
but 40Mo/s instead of 10Mo/s is a very big benefits(10->2X faster !!!)
So I have bought a 200GB Lexar 633x (90, 40) at 120$, and it works like a charm on my S4 !

EVO 64B here...no promblems yet. :fingers-crossed:

http://www.mymemory.co.uk/Micro-SDX...icro-SD-(SDXC)-Card-+-Adapter-80MB_s-Class-10

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is this original or duplicate??? Help
Sent from my Lenovo K50a40 using XDA-Developers mobile app

Probably should ask the seller that question?

Athakuri700 said:
is this original or duplicate??? Help
Sent from my Lenovo K50a40 using XDA-Developers mobile app
Click to expand...
Click to collapse
How much did you pay for it? I find Samsung to be over priced. Got me a lexar microSD card at a cheaper price, and no complaints.
I think brand name SD cards are overrated, IMO. Some of them get bad reviews, and say how they mess up badly after a while, but I think that's just a case of rare instances, or got a defected model. Never had a problem with the cheaper brands, ever.
Sent from my SGH-M919 using XDA Free mobile app

ReyDelGuaguanco said:
EVO 64B here...no promblems yet. :fingers-crossed:
Click to expand...
Click to collapse
Funny thing, my EVO64 went corrupt today. Seems like some sectors in the begging track went kaput...cant delete files, cant format the drive..NADA!...It lasted 6 mos..... BOOO!!

Samsung PRO Class 10 (UHS 1) have 90 Read and 55 Write.
---------- Post added at 12:57 PM ---------- Previous post was at 12:53 PM ----------
See Specs:
http://www.samsung.com/us/support/owners/product/MB-MG64DA/AM

I use Samsung, but I've also used Transcend which are good and also Kingston are fine.