For those of using your smartphones such as the Nexus One to use it as a storage device, you might have noticed some “lag” when transferring big files.
This is usually due to the fact that most smartphones ship with Class 2 MicroSD cards.
Class 2 MicroSD cards are rated at minimum of 2MB/s, which is sorta slow if you compared to the regular USB flash, which nears around 30MB/s with USB 2.0 supported flash drives.
Class 4 MicroSD cards are rated at maximum of 4MB/s while Class 6 MicroSD cards are at 6MB/s.
There’s also Class 8 at 8MB/s and Class 10 at 10MB/s.
Still, there’s a lot room for improvements for the foreseeable future but right now, the fastest MicroSD cards you can buy on the market are Class 10 MicroSD card from Kingston.
Kingston Class 10 MicroSD 16GB – $99.95 on Amazon
This is probably the fastest MicroSD card on the market, if you want to opt for the second best, try these:
Transcend microSDHC Class 6 – See on Amazon for availability
Sandisk MicroSDHC ULTRA series are rated at Class 4 – See on Amazon for availability
Overall, MicroSDHC cards weren’t designed for large file transfers but you do still have the option of getting a Class 10 MicroSD card, it’s worth every dollar if you ask me.