Question: what is usb 3 transfer speed?
Answer: USB 3.0 has transmission speeds of up to 5 Gbit/s, about ten times faster than USB 2.0 (0.48 Gbit/s) even without considering that USB 3.0 is full duplex whereas USB 2.0 is half duplex. This gives USB 3.0 a potential total bidirectional bandwidth twenty times greater than USB 2.0.