Black Steel Series USB 2.0 5H CH V2 7.1 Sound Card For Desktop Notebook PC Black The USB Virtual 7.1 Channel Sound Adapter is a highly flexible audio interface which can be used either with Desktop or Notebook systems. No driver required,just plug and play for instant audio playback,also compatible with all major operation systems. Complaint with USB 2.0 Full-Speed(12Mbps)Specification. Complaint with USB Audio Device Class Specification 1.0. Complaint with USB HID Class Specification 1.1.