 
  1. Description: 8 Ports Docking (4 USB + PS/2 + Microphone + Speaker + Earphone) 
2. Feature 
1) Adds four more USB2.0 ports at 500mA each into your computers 
2) Hot-swapping feautre lets you connect/disconnect USB devices without restart your computer 
3) 8 ports, bus powered 
4) Moves USB, PS/2, and audio pors to the top of your desk for easy access 
5) Provides 4 Hi-Speed USB 2.0 ports for additional peripherals 
6) Speaker/microphone audio ports 
7) Keyboard/Mouse PS/2 ports 
8) Overcurrent protecion 
3. Specification 
Interface: USB2.0/1.1 
Transfer speed: Up to 480Mbps 
Unit Dimension: 82.5 x 52.3 x 28.6 mm 
Weight: 140g 
4. 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 Mac9 by vendor driver