Develop Bugs

Reliable 16 SD card?

Since the 8 gb card that came with my DHD is a little too small I'm looking for a 16 gb sd card.
I browsed through amazon's selection and found many bad reviews regarding data loss on several products. What brands are generally known for reliable SD cards? Sandisk seems to make good cards?
And another thing, I read that often SD cards are faster than their class. There were people that got transfer rates of up to 15 mb/s with a class 2 card. Apparently a class 2 card is basically the same as a class 6 card, just that in the latter case the manufacturer guarantees the higher speed while in the former it might be slower. Is that true?

As for brands, I recommend SanDisk and Lexar. I've used cards from both manufacturors in all my cameras and phones for years, and I've never had a card fail me.

I got 2 Lexar in camera + phone : no problems so far

+1 for SanDisk

The Speed Class Rating is the official unit of speed measurement for SD Cards, defined by the SD Association. The Class number represents a multiple of 8 Mb/s (1 MB/s), and meets the least sustained write speeds for a card in a fragmented state.
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Wikipedia quote
If I understand it write, the class rating is a sustained speed, so you may get faster speeds, but usually not.
Also from that same site, manufactures quote speeds, and not an independent testing company, so they may not always be honest XD
Secondly, Sandisk for 16 gig never gave me a problem. However, at 8 and 4 gig pny hasn't given me any issues either.

i wanted a bigger card a month ago and looked at both lexar and sandisk 16gb, i went for the lexar as it was apparently faster in the reviews and was only a tiny bit more expensive than the sandisk. and it has been perfectly reliable.

Ok, thanks.
joememe, which reviews did you read? I found one lexar vs sandisk at nokiaguide.com and just want to make sure we don't both base on the same review.
Because if lexar really is better I'll spend the few extra €.
If I understand it write, the class rating is a sustained speed, so you may get faster speeds, but usually not.
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That's interesting and a good thing because standards like S-ATA 1/2/3, USB 1/2/3 and many others define the max possible transfer which isn't very userfriendly.
So I suspect that all cards of a manufacturer are essentially the same and get a class 4/6/10 rating after production according to their QA results. Like with a CPU you might get lucky and the card just barely didn't make it to 10 and thus get a very good performance class 6 card.

I ordered a 16gb class10 Transcend card from Newegg and LOVE it. Lifetime warranty ftw!! I've tried returning Sandisk cards for warranty and haven't received a response in months...so not +1 for Sandisk if there are warranty problems.

I just picked up a Transcend 4gb class 6 micro sd from Newegg and it died within a day. Luckily Newegg is shipping out a replacement asap and I don't have to return the defective card.

+1 for lexar 16gb class 6

Here's a link to the one I use. I own 8 or so of these and use them in cell phones, camera's, and even in a cam corder. I have yet to see one of them fail or have any sort of performance issues.
SanDisk 16 GB Class 2 microSDHC Flash Memory Card
Note that even though it's a class 2, in my testing with each of the cards I own, I have consistently gotten class 4 performance from all of them.
If you want something even bigger, the 32 GB cards have really come down in price. Here's a SanDisk for $71.
SanDisk 32GB MicroSDHC Card (SDSDQ-032G-A11M, US Retail Package)

Isn't the price a bit too low? The one on Amazon has a bad review saying it didn't come in the retail package.
http://www.amazon.com/review/R4BG1JM1R3OKM/ref=cm_cr_pr_viewpnt#R4BG1JM1R3OKM

andisk maybe the best choice

sanseven said:
andisk maybe the best choice
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IMO, Sandisk is definitely the best choice for a quality microSD. They always perform much better than their class rating. And the also are most consistent in getting good randon read, write and access speeds, which is much more important that the class rating when using the card in cell phones or for any task other than just large data transfer and digital cameras. Higher class cards only give higher sequential write speed, but usually are worse at random read/write speeds and access time than a class 2 or 4.

Beware of sandisk microsdhc products

I recently bought a sandisk microsdhc 8 gb class 4 card from a reputable seller in my country, and this is a genuine sandisk product, NOT a counterfeit or fake
product
These are the pictures of the product
Uploaded with ImageShack.us
Uploaded with ImageShack.us
The serial number is SDSDQM-008G-B35N
The label on the card has a number "4" in a circle, so people would think this is a class 4 card, BUT this is not a class 4 product !
This is ACTUALLY a class 2 products
Proofs:
I tested it using a card reader
Uploaded with ImageShack.us
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Furthermore, on googling the serials "SDSDQM-008G-B35N", showed the original product's label, which is class 2 !
http://www.amazon.com/Sandisk-Sdsdqm008gb35n-Microsd-Capacity-Reliable/dp/B005177GZE
Even my "no name" cheap chinese brand microsdhc of unspecified class performs faster in writing operation than this sandisk microsdhc !
The same people that got tricked into buying fake class 4 sandisk products
http://forums.sandisk.com/t5/Mobile...-SDHC-8gb-Class-2-printed-class-4/td-p/224410
I used sandisk products for years, for almost all of my gadgets, BUT now I am very dissappointed, I never thought a reputable company such as Sandisk would do this kind of scam
But seeing is believing
I don't even bother to email sandisk support nor complain to sandisk in my country, since the product isn't a defect product, nor it is a counterfeit product, BUT it is a genuine product with an intended false specifications in order to cheat consumers
I'll make sure that any sandisk products which I used are the last, never would I bought anything from sandisk again
I sincerely hope this kind of scam would increase sandisk sales
Oh BTW, this is the specification of different classes of speed in SD card
http://en.wikipedia.org/wiki/Secure_Digital#Speed_Class_Rating
I regret not buying transcend microsdhc but buying sandisk instead
Hope this will be a valuable lesson for me and the others who tricked too, also an info for readers
Thanks

That's really interesting. Wouldn't have expected that from a company like Sandisk...
Sent from my Inc using Nil's Business Gingersense. Now that's Incredible.

I have a 16GB Class4 Sandisk MicroSD as well, it performs like a Class2 card, the maximum writing speed I could get is about 3.2mb/s, and it went to 2.0mb/s after a while. Tested using card reader, SD adapter and also directly through phone USB.
I'm going to get a 32GB MicroSD by this month, don't know whether should I trust Sandisk or not or get a Class10 DNA instead.

so thats why my 16gb felt like turtle? zzz

i just tested my 16gb Class4 Sandisc microSDHC with sd tools on my HD2.
dunno, but my class4 beheaves like a class4 or even class6.
i got 5.9MB/s writng speed and 23MB/s reading speed
this without modding the cache file

Maybe they just cocked up with the labeling?

I am going to have to check on mine now.

Just checked my 16gb that I got a few backs back. Same thing reputable dealer retail packing not tampered with and just tested getting 2.35 mb/s write speed and it can't in the wrong package as the card has a 4 stamped on it. Not impressed at all. I have always trusted sandisk but I think I may have to drop them a message and see what they say.

look inside this link
http://www.sandisk.com/products/mobile-memory-products
can u see any Class 4 card? yes, the one labeled "Ultra", but there is no 32bg ultra mobile card, so my guess is that the card you bought is a fake Class 2 one.
Who is that reputable seller? I hope u dont mean Amazon.
Anyways if u pay something like $50, u r fine.
@D4rkSoRRoW: since your card is probably fake too, i would appreciate that u tell us your amazon or ebay seller. Thanks

luckily I don't use sandisk..

Hi what program do you use to test your cards speed? thanks

Interesting thread, I've always been a little iffy on Sandisk.

in same lot, some of them have better speed than class number some of them have worst speed.
just use your luck.

wow, are you real sure you bought it from a honest seller? Because the middleman can always get a bulk for cheap if the original providers sold for less because of defects or human errors from the factory plant.....

416XXX said:
Hi what program do you use to test your cards speed? thanks
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SD Tools on the market is pretty good for testing read / write speeds of SD cards.
My Samsung 8GB class 6 gets over 9MB/sec writes and nearly 20MB/sec reads.

I need a good 16gb micro sd?

I'm looking for a good quality or at least good performing 16sd card. I'm trying to find a good value, and I've found some class 10's on ebay for like $13, but I know there are variables such as what format they are, but I'm not too hip on what's best? I have a class 4 SanDisk 8gb, and it's time for something faster with more space for all of my backups. If someone maybe has an ebay or amazon link to something they've bought & have been pleased with that would be great! Thanks in advance.

androholic said:
I'm looking for a good quality or at least good performing 16sd card. I'm trying to find a good value, and I've found some class 10's on ebay for like $13, but I know there are variables such as what format they are, but I'm not too hip on what's best? I have a class 4 SanDisk 8gb, and it's time for something faster with more space for all of my backups. If someone maybe has an ebay or amazon link to something they've bought & have been pleased with that would be great! Thanks in advance.
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You can grab a 32 gb from Wal-Mart for a little under $30. Why not go that route? I have 2 of them but use a 64 gb atm.

The_Biz said:
You can grab a 32 gb from Wal-Mart for a little under $30. Why not go that route? I have 2 of them but use a 64 gb atm.
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What class are they? Also, is there a certain format I should be sure they are? I have 4 8gb cards I've been moving from phone to phone forever?

Do you need a good one? Up to you, man.
**Good fun ribbing at your thread title. We call that an upswing in the sales world.**
Horrible way to close a deal, btw
Sent from my SCH-I535 using Tapatalk 2

androholic said:
What class are they? Also, is there a certain format I should be sure they are? I have 4 8gb cards I've been moving from phone to phone forever?
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Class 6 and reliable when I got mine.

I just ordered a UHS-1 30mb/s read speed, sandisk 32Gb micro sd card for 28 euro, for performance i would go with a class 10 or UHS-1 which operates as class 10s maximum speeds
Ideal for HD recording etc.
On a side note, any memory cards purchased off ebay should be tested for their true capacity, use a german software called H2testw, its gold standard for testing memory read/write speeds. And total capacity
One can not determine if the seller is 100% genuine or not unless its a credible company
It is possible to have a memory card stating its 32GB size for example, but in reality this card could really be only 8GB in size, a tiny program could be installed on a hidden partition and as you save more files to your card, once the 8GB limit has reached it overwrites your oldest files with the newly saved files to keep space, operating systems are fooled into thinking the particular card has a full capacity of 32GB which is not actually true
Sent from my amazing Samsung I9300 using XDA premium

they have sandisk 32gb on amazon for $17 f/s.. not class 10 (i think 6) but for the price who cares.. class 10 is useless unless you coping large files.

I just bough a 32gb Micro SD card on Ebay for 14.49 free shipping SDHC Memory that's good enough for me.
Want a link? there's more...

xWiZxKiDx said:
I just bough a 32gb Micro SD card on Ebay for 14.49 free shipping SDHC Memory that's good enough for me.
Want a link? there's more...
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what class? also be careful with ebay cards a lot of them are fakes.

Grabbed my PNY 32 gig at best buy its a class 10 and has pretty good benches online for $40 right now. It isn't as good as a deal as ebay or amazon but with all the insane amount of counterfeit cards I really felt the still over priced on sale micro sd was a better option.
Sent from my SCH-I535 using xda app-developers app

tft said:
what class? also be careful with ebay cards a lot of them are fakes.
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Yeah, I just bought a class 10 32gb from Walmart to be on the safe sid.

32gb Sandisk ultra for $25 at bestbuy. 1 day sale..
http://forum.xda-developers.com/showthread.php?t=1840385

I got the 16GB ultra SanDisk from Wal-Mart for 22 buck guess its the fastest sd you can buy
I dont need over 16GB I'd never be able to fill a 32 .
Sent from my SCH-I535 using Tapatalk 2

sandisk ultra 16gb class 10 30mb with adapter
15$
http://www.amazon.com/gp/product/B007XZL7PC/ref=oh_details_o00_s00_i00

tonytownsend said:
I got the 16GB ultra SanDisk from Wal-Mart for 22 buck guess its the fastest sd you can buy
I dont need over 16GB I'd never be able to fill a 32 .
Sent from my SCH-I535 using Tapatalk 2
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The worlds fastest micro sdhc is the sandisk extreme pro at 95mb/s, the largest size is 16GB at present, but the speed is useless in a phone, as no phone supports UHS 1 specification.
if it's to be used in a phone then the samsung 16GB class 10 is the fastest at write 21mb/s and read 24mb/s, largest size is 16GB.

kms108 said:
The worlds fastest micro sdhc is the sandisk extreme pro at 95mb/s, the largest size is 16GB at present, but the speed is useless in a phone, as no phone supports UHS 1 specification.
if it's to be used in a phone then the samsung 16GB class 10 is the fastest at write 21mb/s and read 24mb/s, largest size is 16GB.
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Thanks Man! I never heard of sdhc before? Until Android supports it then it won't do much good for me, because I only use sd cards these days for transferring files from between phones, media storage, etc. I generally use usb drives for all my other portable storage needs, but I'll definitely be keeping my eye on sdhc for any advancements in compatibility.

My new sandisk class 10, is well over twice as fast as those old class 4 cards I was constantly shuffling around! This is great for transferring large rom files & movies to external memory.

Better go for SanDisk sdhc class6:thumbup::thumbup:
Sent from my HTC Explorer A310e

androholic said:
Thanks Man! I never heard of sdhc before? Until Android supports it then it won't do much good for me, because I only use sd cards these days for transferring files from between phones, media storage, etc. I generally use usb drives for all my other portable storage needs, but I'll definitely be keeping my eye on sdhc for any advancements in compatibility.
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micro sd is 2gb or less
microsdhc is 4gb-32gb
microsdxc is 64gb-2tb
all android supports microsd and micro sdhc

kms108 said:
micro sd is 2gb or less
microsdhc is 4gb-32gb
microsdxc is 64gb-2tb
all android supports microsd and micro sdhc
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I meant sdhc sandisk extreme pro, and in the midst of screaming children I didn't finish what I was typing. Though I did not know that 64gb or larger is called sdxc? Is that why it seems they have to be formated differently out of the box or ppl tend to have issues when using them with Android?

[Q] Sandisk Pixtor 64gb microsd Class 10 measuring slow on benchmark

I purchased this 64gb microSD card from Best Buy during their promotion when it was only $35. Quite a good deal! A reputable dealer, right?
http://www.bestbuy.com/site/sandisk...nL5HPStwNw-5KnKYHRIZPi9xaB03EhxNw#tab=reviews
Price has since increased, but still not a bad deal.
Because it comes exFat, and my Galaxy S4 rom doesn't read exFat, I formated it to FAT32.
When I test it with A1 SD Bench (https://play.google.com/store/apps/details?id=com.a1dev.sdbench) however, the write speed only comes out to 7.5mb/s or so. Which seems a bit short of the Class 10 rating.
Acceptable variance? Do I have a fake?

[Micro-SD Support?]

I don't know much about Micro-SD cards but would this work well in the S3? http://www.amazon.com/gp/aw/d/B00IF4OATU?me=&ref=olp_product_details

Hi,
You can use any microSD, microSDHC or microSDXC card of up to 64 GB of storage capacity. Based on this information, yes, the card you linked would be recognized by the SGS3.

dracinn said:
I don't know much about Micro-SD cards but would this work well in the S3? http://www.amazon.com/gp/aw/d/B00IF4OATU?me=&ref=olp_product_details
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I don't see why not. I personally would choose another brand. An actual Samsung 64GB card should definitely be more compatible and at a cheaper price. Check this one:
http://www.amazon.com/Samsung-Class...6198558&sr=1-2&keywords=samsung+64gb+micro+sd
This card is the PRO series version from Samsung, nearly as fast transfer rates, is cheaper, and covered under prime shipping if you have a prime account. The speed difference is pretty much negligible (95 MB/s for the Lexar vs 90 MB/s for the Samsung).

aybarrap1 said:
I don't see why not. I personally would choose another brand. An actual Samsung 64GB card should definitely be more compatible and at a cheaper price. Check this one:
http://www.amazon.com/Samsung-Class...6198558&sr=1-2&keywords=samsung+64gb+micro+sd
This card is the PRO series version from Samsung, nearly as fast transfer rates, is cheaper, and covered under prime shipping if you have a prime account. The speed difference is pretty much negligible (95 MB/s for the Lexar vs 90 MB/s for the Samsung).
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Thanks for the help. Do you personally use this card and if so do you have exfat issues.

dracinn said:
Thanks for the help. Do you personally use this card and if so do you have exfat issues.
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I use the EVO card because I found it on sale ($15 for 32GB) but I have heard of no issues with this card.