Kingston 64GB microSDHC/SDXC UHS-I U3 review
Kingston sent me one of its 64GB microSDHC/SDXC cards for a project of mine, and review. While the project’s the subject of the next conference call I’m getting on in twenty minutes, I thought I’d sit down and write a short piece on the card.
As it’s storage media, I don’t have much to say, and as I’ve received this for review gratis, you should question all glowy speak. But here are some numbers from a system running CrystalDiskMark 3.0.3 64 bit, Windows 7-64, nothing running that’s on the IO channel, a Kingston MobileLite USB 3 card reader, and an Anker Upspeed USB 3.0 adapter.
The card is formatted in exFAT and claims to deliver 90MB/s read, 80MB/s write. As my computer isn’t a devoted testing bench, and my Android devices are subject to the whims of kernel developers, ROM settings, and the wind, I generally hope to see within 10% of those stated goals on a card.
That said, the only hardware opinion I’ll express other than the numbers is that getting into the package was a bit difficult and I needed scissors, a knife, and a bandaid. This probably tells more about me than their packaging however.
I did two CrystalDiskMarks on this as I wanted to see what the difference between a 4 gigabyte test and a 50MB test would bring up. The tests measure different things – the larger is much more appropriate for assuming this is how a video you’re shooting will handle on the card, the smaller is probably better for still shots and may reflect your real world use a little better. That’s my assumption at the moment.
The card exceeded the stated read values on both tests, and came within 5% on the write tests of the larger files.
On the Android test I achieved 70 MB/s reads and 55.66MB/s writes. This should be taken with a grain of salt as kernels, ROMs, and IO differ greatly on the same device. The card is obviously capable of writing at 76 MB/s on my tests, the fact that my phone doesn’t handle it, probably I need to talk to the kernel developer to see why. That stated, just including this for comparison.
You can check out the manufacturer’s page here for more info.
On a side note, this is the card that dropped my nandroid backup times by 60%. It’s been in use since right after CES and so far no complaints.
The Kingston 64GB microSDHC/SDXC UHS-I U3 is available from Amazon for between $43 and $77.