cartup USB Sound Adapter with 2 Stereo Output Jack and Microphone-Input Jack, External Sound Card USB (Direct USB) Size name:Direct Usb   USB Sound Card Virtual 7.1 Channel Sound Adapter is a highly flexible audio interface whiired, just plug and play for instant, audio playback, also for all major operation system.Features and Specification - USB 2.0 Full-speed (12Mbps) Specification - USB Audio Device Class Specification 1.0 - USB HID Class Specification 1.1 - USB bus-powered mode, no external power required - Connectors: USB Type-A, Stereo output jack, Mono microphone-input jack Include Xear 3D, the virtual 7.1 channel sound simulation software for Windows XP -- No driver required for Windows 98SE / ME / 2000 / XP / Server 2003 / Vista Linux, MacOS.