Dual USB Port: There are 2 USB interfaces. One -USB is on the side of the product, and a 4Pin 2.54 row pin USB interface is behind the product. The configuration software can support horizontal screen, vertical screen, horizontal screen, images, vertical screen images display, which is convenient for installation. This 3.5inch display with multiple themes can be used , no additional power supplys is required, and no multimedias interface is required. Stepless adjustment of screen brightness, you can adjust the screen brightness according to your needs. Aida64 is compatible with system, and lcd4linux software package (supporting 32-bit and 64 bit) can be compatible with Linux. (it can be used in system, Qunhui NAS, openwrt router, raspberry pie and other Linux systems). Specifications: Screen size: 3.5 Inch Resolution: 320*480 Thickness: 7~8mm Viewing angle: IPS full viewing angle Interface: USB Material: plastic colour: black Package Contents: 1 x Display Screen 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.