Discount USB 3.0 Cable (Type A, 3 ft.) Cables

The USB 3.0 specification for the Calrad 72-135-3 is similar to USB 2.0  but with many improvements and an alternative implementation. Earlier  USB concepts like endpoints and four transfer types (bulk, control,  isochronous and interrupt) are preserved but the protocol and electrical  interface are different. The specification defines a physically  separate channel to carry USB 3.0 traffic. USB 3.0 has transmission  speeds of up to 5 Gbit/s, which is 10 times as fast as USB 2.0 (480  Mbit/s) before taking into account that USB 3.0 is full duplex whereas  USB 2.0 is half duplex, giving USB 3.0 the potential total bandwidth if  utilized both ways to 20 times that of USB 2.0.