Thumb drive ext2 slow write speed

Nils Kassube kassube at
Tue Nov 4 20:53:42 GMT 2008

Jonas Norlander wrote:
> So what can the theoretical write speed be with USB 2?

The USB 2.0 data rate is 480 Mbit/s or 60MB/s minus overhead (-> probably 
40-50MB/s). The limiting factor here is your device.

> I have a 
> Corsair Survival 16 Gb and the test I seen on the net shows a write
> speed of more then 20 MB/sec but I'm far from that during my test.

Are you sure that is the write speed not read speed? I mean, 20MB/s is 
really fast. Do you have a URL for the test?


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