7.1 Channel Sound Stereo & Microphone 4 Port USB External Sound Card

7.1 Channel Sound Stereo & Microphone 4 Port USB External Sound Card 1. Complaint with USB2.0 Full -speed ( 12 Mbps ) specification 2. Compliant with USB Audio Device Class Specification1.0 3. Compliant with USB HI D Class Specification1.1 4. USB bus - Powered mode . no external power required 5. Connectors : USB Type - A, Stereo output jack, Mono microphone- input jack 6. Functional Keys:Microphone-Mute.headset-Mute.Volume-Up.Volume-Down 7. Driverless - No driver required for Windows 98SE / ME / 2000 / XP / Server 2003 / Vista . Linux . Mac05 System requirements: 1. Desktop or notebpook PC with a USB port 2. Windows 985E / ME / 2000 / XP / Server 2003 / Vista,Linux,Mac 05 10 or higher 3. Xear 30(Virtual 7.1 channel sound simulation software) for Windows XP / Vista SC1042