Question: how long will it take to transfer 1gb on a usb 2.0?
Answer: The theoretical limit for USB 2.0 is +/- 53 MBps. USB2. 0 is specified as 480 Mbps = 60 MBps but due to the specification and protocol overhead, the maximum is 53 MBps. This means for 1 GB it takes 18,78 seconds (18,78 x 53,248 MBps = 1 GB).