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
