Vafru USB to 3D External Sound Card Audio Adapter Virtual 7.1 Channel CH Sound Mic Speaker Double Adaprter VAFRU Brand, Only authorized dealer can sell on this product.Don't buy bad quality fakes from unauthorized sellers. If you have brought fakes from other sellers please make A-Z dispute with them and get your money back ASAP. fake products aways broken in short time and no warranty ! Driverless - No driver required for Windows 98SE / ME / 2000 / XP / Server 2003 / Vista . Linux . Mac05 Connectors : USB Type - A, Stereo output jack, Mono microphone- input jack Complaint with USB 2.0 Full -speed ( 12 Mbps ) specification Compliant with USB Audio Device Class Specification1.0;Compliant with USB HID Class Specification1.1