This driver board supports USB-5V voltage input, and can use mobile phone chargers, power , computer USB ports, etc. as power sources Support HD signal input, use socket for HD1.4 The potentiometer adopts a wave wheel button, three in one function, menu, add, subtract, and compound brightness and volume The headphone jack is for audio output and can be used with regular 3.5mm headphones or connected to external amplifier devices The LCD screen interface is EDP30PIN interface, and the output interface needs to be confirmed through software upgrade Specifications Hign-concerned Chemical: None Model Number: edp Compatible Audio & Video Equipment Style:Display Equipment type: 30Pin 1920x1080 Color: as shown Material: PCB Package Contents: 1 x Driver Controller Board 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.