Features: Brightness adjustment: The screen brightness can be adjusted steplessly according to need. Compatible system: Compatible with the Wins system, and for the lcd4linux software package (supporting 32-bit and 64 bit) can be compatible with Linux. (It can be used in for Wins system / Linux systems). Dual USB ports: There are two USB interfaces. There is a MicroUSB on the side of the product and a 4Pin 2.54 pin USB interface on the back. Easy installation: The configuration software can support horizontal screen, vertical screen, horizontal screen images and vertical screen images display, which is convenient for installation. Functions: This 3.5-inch multi-theme display screen is easy to use without additional power supply and multimedia interface. Only one USB cable is required. It supports horizontal and vertical screen switching, 360 degree rotation, and is compatible with multiple systems. brand new and high quality Specifications: Material:Aluminium alloy Interface Type: USB Panel Type: IPS Application: Desktop Screen Type: LCD Bracket Type: Ordinary bracket Color: Black Type: Screen+bracket+USB cable/Screen+bracket+special base+USB cable/Screen+bracket+special base+USB connector+USB cable Screen size: 3.5 inches Resolution: 320x480 Thickness: 7-8mm Perspective: IPS full perspective Interface: Dual USB (microUSB, 4Pin 2.54 pin USB) Size:Approx. 55x85mm/2.17x3.35in Package weight: 150g Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set Secondary Screen