Feature 1 Dual USB Ports There are 2 USB ports There is a MicroUSB on the side of the product and a 4Pin 2.54 row pin USB interface on the back of the product 2 Easy Installation The configuration software can support horizontal screen vertical screen horizontal screen image and vertical screen image display which is easy to install 3 Stepless Adjustment Stepless adjustment of screen brightness you can adjust the screen brightness according to your needs 4 Compatible System Compatible with Wins system lcd4linux software package support 32bit and 64bit can be compatible with Linux Available for Wins system Synology NAS openwrt router Raspberry Pi and other Linux systems 5 Easy to Use This 3.5-inch multi-theme screen 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 Specification Origin Mainland China Accessories Type Secondary Screen Material Plastic Color 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*480 Thickness 7-8mm Viewing angle IPS full viewing angle Interface Dual USB MicroUSB 4Pin 2.54 pin header USB Appearance size 55*85mm/2.17*3.35in Pack Weight 150g/5.3oz Include 1 X Screen 1 X Dedicated Case 1 X USB Splitter 1 X USB Cable