USB 2.0 to Audio Adapter w/Microphone Jack Eliminate the need for a traditional sound card with this USB to Audio adapter. Real USB plug & play to upgrade any on-board soundcard to 5.1 Digital Surround Sound without any hardware installation. Connect a speaker or headphone directly to the adapter and enjoy 3D positional sound and virtual 5.1ch sound track. Use the USB port power directly. Get this great adapter today! Specifications: Plug and Play USB 2.0 Stereo 5.1-channel sound effects Virtual speaker shifter Speaker/headphone jack Microphone jack Transform analog sound signals to digital Package Include: USB 2.0 audio adapter Driver disk User manual Requirements: Windows 98SE/ME/2K/XP Available USB port CD-ROM (for driver installation) Notes: Model: 280B Also found to work in Mac OS X 10.3.7, but without 3D effects software/drivers