Features: Compatible system: Compatible with Wins system / lcd4linux software package (support 32-bit and 64-bit) can be compatible with Linux. (Available for Wins system / Synology NAS / openwrt router / Raspberry Pi and other Linux systems). Dual USB Ports: There are 2 USB ports. There is a Micro-USB on the side of the product and a 4Pin 2.54 row pin USB interface on the back of the product. Easy installation: The configuration software can support horizontal screen, vertical screen, horizontal screen image and vertical screen image display, which is easy to install. Easy to use: This 3.5-inch multi-theme display is easy to use, no extra power supply, no multimedia interface. All you need is a USB cable to use. Support horizontal and vertical screen switching, 360-degree rotation, compatible with multiple systems. Stepless adjustment: Stepless adjustment of screen brightness, you can adjust the screen brightness according to your needs. brand new and high quality Specifications: Accessory Type: Secondary Screen Material: Acrylic Colour: Black Type: A: screen + bracket + USB cable, B: screen + bracket + dedicated base + USB cable, C: screen + bracket + dedicated base + USB splitter + USB cable (optional) Screen size: 3.5 inches Resolution: 320 x 480 Thickness: 7-8mm Viewing angle: IPS full viewing angle Interface: Dual USB (Micro-USB, 4Pin 2.54 pin header USB) Appearance size:approx. 55x85mm/2.17x3.35in Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 01: 1 X Screen 1 X Bracket 1 X USB Cable 02: 1 X Screen 1 X Bracket 1 X Dedicated Case 1 X USB Cable 03: 1 X Screen 1 X Bracket 1 X Dedicated Case 1 X USB Splitter 1 X USB Cable