USB3.1 (also called Gen.2) brings many improvements to the previous standard USB3.0 (Gen.1). The most noticeable is the new Type-C connector which is much smaller than the previous standard connectors, it is also reversible. Alternative Mode The new Type-C Alternative Mode allows the USB cable to carry different types of signal, including native DisplayPort capable of 4k resolution video. Reversible Connector The new USB Type-C connector is smaller than most of the previous USB connectors. (Micro B is the exception.) It is also symmetrical; this allows you to plug the connector in either way up. Specifications Type C Reversible connector Male to male connectors Data Transfer Rate: 5Gbps Charging Output: 20v 3A(60w) Length: 2m Black