Spactz Product name: USB sound card Number of interfaces: USB x 1, headphone port x 1, headset port x 1, microphone port x 1 Applicable slot: USB interface Input and output interface: linear output (front), linear input Support channel: 7.1 channel Installation : external color:black Material: plastic Size:18 x 3.5cm Package Contents: 1 x USB Sound card Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.