The tech company behind SlimPort unveiled a new version of the USB-enhancement called SlimPort Pro. The new standard can simultaneously transmit high-definition video (up to UHD / 2160p), 8-channel audio, USB 2.0 data (480Mbps) and power over a standard-looking 5-pin USB port.

The press release talks up docks – with smartphones becoming more powerful, a dock could connect them to both displays and peripheral devices and SlimPort Pro can do it with a single connector.

The new format will, of course, have to compete with MHL 3.0 which also promises UHD video, 8-channel audio, 75Mbps data and up to 10W of power. This means MHL 3.0 is slower on 5-pin connectors, but 10-pin USB 3.0 ports can go up to 600Mbps.

Anyway, the bigger issue facing SlimPort Pro is the relatively low adoption – LG and Asus seem to be the only phone and tablet makers using the standard, while others prefer MHL.