USB Type-C

    The Type-C connectors connect to both hosts and devices, replacing various Type-B and Type-A connectors and cables with a standard meant to be future-proof. The 24-pin double-sided connector is similar in size to the micro-B connector, with a Type-C port measuring 8.4 millimetres (0.33 in) by 2.6 millimetres (0.10 in). The connector provides four power/ground pairs, two differential pairs for non-SuperSpeed data (though only one pair is populated in a Type-C cable), four pairs for high-speed data bus, two "sideband use" pins, and two configuration pins for cable orientation detection, dedicated biphase mark code (BMC) configuration data channel, and VCONN +5 V power for active cables. Connecting an older device to a host with a Type-C receptacle requires a cable or adapter with a Type-A or Type-B plug or receptacle on one end and a Type-C plug on the other end. Legacy adapters with a Type-C receptacle are "not defined or allowed" by the specification, due to their being able to create "many invalid and potentially unsafe" cable combinations.

    全功能Type-C电缆是活动的,带有电子标记的电缆,其中包含具有ID功能的芯片,该芯片基于配置通道和USB Power Delivery 2.0规范中的供应商定义的消息(VDM)。除了基准总线电源提供之外,C型设备还可以选择支持1.5 A和3.0 A(5 V时)的总线电源电流;电源既可以通过配置通道通告增加的USB电流,也可以使用BMC编码的配置线和旧BFSK编码的VBUS线来支持完整的供电规范。