7.1-Channel USB 2.0 External Sound Card w/3.5mm Headphone and Microphone Jack Interface,USB 2.0 to Stereo Mic Adapter Converter Type: USB Type A Specifications: USB 2.0 Full-speed (480Mbps) specification USB HID class specification 1.1 USB Audio device class specification 1.0 USB Type A, stereo output jack, mono microphone input jack connectors Supports: Windows 98se /ME / 2000 / XP / Server 2003 / Vista/Windows 7 and Windows 8 Linux/ MacOS 10/ System Requirement : Desktop or notebook PC with a USB port, Stereo active speakers or stereo earphone Connector A: 3.5mm stereo jack Connector B: 3.5mm mic jack Option: Adapter Color: Black