2 Interface USB 3.0 SuperSpeed
2.8 USB 3.0 connectors

USB 3.0 connectors have been developed on the bases of the requirements of the higher transfer rate, limitation of the influence of electromagnetic interference, support for mobility and low price. All features while maintaining of maximum compatibility with USB 2.0. USB 3.0 specification defines the same types of connectors such as USB 2.0, up to a new one - powered connector type B.

  1. Standard connector type A – probably the most widely used connector, host connector, shape and dimensions are identical to the corresponding USB 2.0, but with additional contacts for two additional data pairs and ground; it provides full backward compatibility.
  2. Standard and powered connector type B – designed for use with large stationary equipments, do not provide complete backward compatibility and the connector is larger due to the added contacts. It is possible to connect USB 2.0 plug into a USB 3.0 connector, but the reverse connection is not possible. Powered connector is different only in two other added contacts enabling the device to provide power supply.
image
Standard connector type A and B
  1. Micro connectors type A and B – designed for relatively small and lightweight device, which corresponds to their size and therefore the same as B-type connectors do not provide complete backward compatibility; There plugs type B and type AB, to plug type AB can engage connector type A and B to plug type B, then just connector type A.
  2. Reversible connector type C – it is a new universal connector for USB interface, which is mechanically symmetrical (i.e. it is not necessary to differentiate the direction of the link). There are arranged inside the cable 24 wires for power, USB 2.0 data, 2× USB 3.0 data, configuration poles and poles for other purposes. Active cable is an optional possibility (includes a chip). Power supply is classic 5 V with a current up to 3 A (maximum is up to 20 V with a current of 5 A). The dimensions of the connector are 8.4 × 2.6 mm. The new connector implicitly supports alternative transport protocols.
image
Reversible USB connector type C