USB Type C Specification Update to Protect Against Substandard Cables

By David Yee April 13, 2016

In light of concerns of non-compliant USB Type-C cables, the USB 3.0 Promoter Group has announced the new USB Type-C Authentication specification to allow devices to confirm the authenticity of a cable. This update bundles together hardware descriptors, certifications, and developer specifications to protect against non-compliant USB Type C cables and devices. Not only are OEMs and consumers protected against improper power deliver, but also unauthorized data transmission.

Reports of dodgy USB Type C have gotten potential buyers uneasy choosing between third party cables. Notable tests by a Google engineer have shown that many low-cost cables were not compliant with the power delivery and charging specifications which could lead to damage to the device being charged. Its become such a concern that Amazon has threatened to blacklist any seller known to sell faulty cables.

The new authentication protocol should restore some faith in the standard in the face increasing adoption. USB Type-C defines a 24-pin reversible plug connector also noted for its versatility. Fully featured cables are active and can deliver power in addition to data.