VAFRU USB 2.0 7.1 Channel USB External Sound Card Audio Adapter 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 ! USB bus-powered, no external power required.Reverse Compliant with USB Audio Device Class Specification 1.0 Connectors: USB Type-A, Stereo output jack, Mono microphone-input jack. 2 LED indicators. Driverless for Windows 98SE/ME/2000/XP/Server 2003/Vista/7/8/Linux/Mac OSX. Dimension: 1.8" L x 1.0" W x 0.6" H (45 x 25 x 14 mm). Weight: 0.5 oz (14 g)