There are L/R two audio switch position. Switch to L, audio out L, audio cut R; Switch to R, audio out R, audio cut L.

Extra 4 USB 2.0 ports and 2 pairs audio port(slide switch); USB2.0 and 1.1 compliant for HUB function; USB2.0 high speed transfer rate up to 480 Mbps; Easy to use, hot plug and play; USB bus powered or self-powered; 125cm hard cable wire connect devices to the exclusive interface; Audio line out switch R or L to connect speakers or headset; Instant connection to computer through USB port; Over-current detection and protection; Compatible with Windows Vista/XP/2000/ME/98SE and Mac 10. X.

SPECIFICATION:
Interface: USB2.0/1.1
Transfer speed: Up to 480Mbps
Unit Dimension: 84 x 53 x 23 mm
Weight: 90g

FUNCTION:
Plug & play
Compliant with USB specification, version 2.0
Powered by motherboard 5vDC sources through USB & PS/2 extension plug
OS Win98/ME/2000/XP/Vista/Mac 10. X