USB 3.2 Offers Double the Bandwidth Over USB 3.1; Works With Existing USB-C Cables

BY Rajesh Pandey

Published 26 Jul 2017

Belkin USB-C cable

With Apple and other PC OEMs finally jumping on the USB 3.1 bandwagon, the USB 3.0 Promoter Group has now unveiled USB 3.2. The new standard effectively doubles the current 10Gbps bandwidth of USB 3.1 to 20Gbps by adding an extra lane.

For USB 3.0 devices, the available bandwidth will also effectively double from 5Gbps to 10Gbps. Even better, to avoid further confusion with regards to USB-C cables, the new protocol will be compatible with existing “superspeed” USB-C cables. This means that you will be to use your existing USB-C cables to transfer files at USB 3.2 speeds to compatible devices in the future.

“When we introduced USB Type-C to the market, we intended to assure that USB Type-C cables and connectors certified for SuperSpeed USB or SuperSpeed USB 10 Gbps would, as produced, support higher performance USB as newer generations of USB 3.0 were developed,” said Brad Saunders, USB 3.0 Promoter Group Chairman. “The USB 3.2 update delivers the next level of performance.”

This is possible because the USB-C cables were designed with support for multi-lane operations and future scalability in mind.

The USB 3.2 specification is currently in its final draft phase with a formal release scheduled in September this year. Even if the format is finalised this year, it is unlikely that we will see OEMs and devices launch with USB 3.2 support before late next year.

The additional bandwidth offered by USB 3.2 will be particularly useful for eGPUs which are already currently limited by the bandwidth offered by USB 3.1 Gen. 2 interface. It will also pave the way for future 5K or higher resolution monitors to be powered by a single USB-C port.

[Via BusinessWire]