Description: The sound card needs no external power supply because it has USB bus-power mode. You can use the USB sound card to bypass a faulty sound card and audio port, or as a replacement for a broken USB audio adapter. Made of aluminum alloy, the USB sound card is durable and reliable to use. The length of the item is 3.7cm, width is 1.4cm and height is 0.7cm. The USB sound card is compatible for laptop, for PS4 and for Xbox with USB port. Item Name: USB Sound Card Material: Aluminum Alloy Interface Type: USB Interface, 3.5mm Interface Supporting Functions: 7.1 Channel Specification: USB2.0(480 Mbps） Size Details: 3.7cm x 1.4cm x 0.7cm/1.46" x 0.55" x 0.28" (Approx.) Notes: Please note that the USB sound card needs no driver when being used in the following systems: for Windows98/SE/ME/2000/XP/Server 2003/Vista7/8/10, for Linux and for MacOS. Due to the light and the screen setting difference, the item's color may slightly differs from the pictures. Please allow slight dimension difference due to the manual measurement. Package Includes: 1 x USB Sound Card (Random Color) The sound card needs no external power supply because it has USB bus-power mode. You can use the USB sound card to bypass a faulty sound card and audio port, or as a replacement for a broken USB audio adapter. Made of aluminum alloy, the USB sound card is durable and reliable to use. The length of the item is 3.7cm, width is 1.4cm and height is 0.7cm. The USB sound card is compatible for laptop, for PS4 and for Xbox with USB port.