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. track.Great high quality product! 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 soundtrack. Uses the USB port power directly.