232 of 242 people found the following review helpful
Working Great in Nexus One, Better than Class 2 Performance,
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This review is from: SanDisk 32GB microSDHC Memory Card (Bulk Package) (Personal Computers)I've been impressed with the Sandisk 32GB Class 2 microSDHC card so far. I bought it with bulk packaging, which means it came in a small plastic clam shell case slipped into a little plastic envelope. There were no included adapters.
I'm using the card in my Android Nexus One cellphone. I've used a benchmark app on the phone to gauge performance of the card, and it is doing about 5MB/sec writes and 9MB/sec reads. This is with settings at 10MB test data size and 8KB write unit size. I saw similar write performance when the card was mounted on my PC via a USB 2.0 card adapter. These numbers indicate it's performing somewhat better than the minimum guaranteed for Class 4 cards, which is great. I'm coming from a 16GB Class 6 card and haven't noticed any performance hits, so far.
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Showing 1-8 of 8 posts in this discussion
Initial post: Oct 27, 2010 9:42:00 PM PDT
Wow, you must have gotten a different batch than I did - I for one am getting only 1.4-1.7MB/s write speeds. I'd say not to buy this card if you want performance - get something class 4 or class 6 instead. I doubt anyone with a cell phone would notice class 10 speed, but the difference between class 2 and class 4 is noticeable.
Posted on Nov 22, 2010 3:41:32 PM PST
what seller did you get it from?
In reply to an earlier post on Nov 22, 2010 4:02:39 PM PST
K. Folsom says:
I got mine from BlueProton Consulting.
Posted on Mar 2, 2011 9:58:21 PM PST
I received today a KINGSTON 16 GB CLASS 4 microSD for around $33
write speed was 4.2 gb/sec ... read rate was 13.4 gb/sec
The 8 gb I took out was the one that came with the HTC EVO
write speed was 5.4 gb/sec ... read rate was 16.2 gb/sec class 2 I assume.
I would hope that the write speed would have been better.
But the numbers you are getting are terrible.
In reply to an earlier post on Oct 16, 2011 2:08:54 AM PDT
T. Marshall says:
Sandisk are the best I have measured for RANDOM read/writes and smaller block operations. These are typically what a phone does, not the benchmarks used in simplistic test software. There is a package "CrystalDisk Mark" which does effectively show why some cards, like the SanDisk, are so much faster than others in real use, even though their peak transfer specs are lower.
In reply to an earlier post on Oct 29, 2011 8:08:32 PM PDT
Kevin Ratchford says:
... 4.2 gb/s??!!!! Please tell me you mean mb/s. If this thing reads at gb/s I will buy 500 of them
In reply to an earlier post on Nov 4, 2011 3:41:06 AM PDT
J. Ten says:
Wow, your write speed is like holographic laser 3D tech that hasn't made to consumer market yet.
Posted on Nov 20, 2012 5:17:27 AM PST
Did the micro SD card come with the adapter
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