Part Number quality,.High reliability and stability.Enhance your car performance.Great replacement for your one.Direct replacement,pretty easy to install.Name:Car audio interfaceVoltage: 12VModel Name: USB interfaceCable length: 150cmUSB-LVDS 4PINFunction: USB interface panelUSB Panel-USB Interface AItem Type: Cables, Adapters & SocketsApplicable models:For Alfa - SMART/451Function: After modifying the installation machine, the USB cable extends out of the fixed panel interfaceApplicable to various models, thecar has a host audio with a USB interfaceColour:blackMaterial:plasticPackage Contents:1 x USB interface panelOnly 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.