Yet anather USB 3.0 flash drive. SDCZ73-064G-G46 SanDisk Ultra Flair 64GB.
Yet another small and relatively fast USB Flash. Transcend JetFlash 710S (TS32GJF710S) 32 GB.
Test results are very different on different system and test versions.
CrystalDisk Mark 3
CrystalDisk Mark 5
Best microSD cards, that may be found today at stores is UHS-I with sequental read/write speed about 80-90 MB/s. To achive this read/write speed cardreaders must support at least UHS-I standard and be connected using fast interface like USB 3.0 or better. Use of old readers will reduce speed to about 20 MB/s. Use of USB 2.0 with UHS-I reader gives about 40 MB/s
SDSDQXP-032G-G46A Sandisk Extreme PRO MicroSDHC (633x) UHS-I U3
TS32GUSDU3 Transcend ULTIMATE microSDHC 32GB (633x) UHS-I U3
SDCA3/32GB Kingston MicroSDHC 32GB UHS-I U3
CrystalDiskMark 5.1.2 x64
Additional reading for topic:
Quick comparision of couple USB 3.0 cardreaders with UHS-I support.
|Sequential Read (QD=Q32) (MB/s)||92.26||88.71||93.56||94.11|
|Random Read 4KB (QD=32) (MB/s)||6.58||9.39||10.52||10.50|
|Sequental Read (MB/s)||93.54||93.54||94.17||94.37|
|Random Read 4KB (MB/s)||6.38||8.92||10.11||10.04|
|Sequential Write (QD=Q32) (MB/s)||35.05||38.22||37.89||38.25|
|Random Write 4KB (QD=32) (MB/s)||0.98||1.00||0.78||1.03|
|Sequental Write (MB/s)||34.81||37.95||37.54||37.33|
|Random Write 4KB (MB/s)||0.82||0.68||0.88||0.66|
Verbatim PREMIUM microSDHC Card 16 GB class 10
CrystalDiskMark 5 results:
After 2.5 years of usage, my old backup drive (Seagate Barracuda Green 2TB) failed. Drive usage was minimal, but it was on 24/7. New disk decided to be NAS specialized 4.0 TB. Since I believe, it will be backup for this and next generation of home storage. I hope it will serve more than 2.5 year. So this time disk is WD Red NAS Hard Drive 4.0 TB WD40EFRX.
Before start using it as eSATA backup did some speed tests using USB 3.0 connection to Windows 7 PC.