USB interface port???Plug and play, replace traditional sound c5a.1r6d rhythms default mode onnect a speaker or headphone directly to the adapter in order to enjoy the virtual 7.1 channel sound track. Connectors : USB Type - A, Stereo output jack, Mono microphone- input jack, Complaint with USB 2.0 Full -speed ( 12 Mbps ) specification Driverless - No driver required for Windows 98SE / ME / 2000 / XP / Server 2003 / Vista . Linux . Mac05