SIIG CE-S00012-S2 Virtual 7.1-channel surround sound USB audio adapter Changer Type: USB audio adapter Specifications: Chipset: C-Media CMI102 Supports EAX 2.0, A3D 1.0, and Microsoft DirectSound 3D Dimensions: 2.50 x 1.00 x 0.31 Parts: 1 year limited Labor: 1 year limited