Firmware download:no need firmware, just jump cap to resolution. Not only USB interface can used to play video/music/photo, basically formats are supported doesnt support AC3 Audio, You can also set a display pictures or LOGO. Description: Model: T.HD8503.03C Support TV Signal: Analog Support Language: Russian, English, Chinese, French, , Italian, Spanish, Portuguese, . Scheme of the chip: 8503 Input Interface: PC / / TV / USB multimedia playing Voltage: DC 12 V 3-5A, 4A is the best Screen interface: LVDS Single 6 / 8 , Double 6 / 8 Screen voltage: 3.3V / 5V / 12V Resolution: Support high screen 1920 * 1080, 7-55 inch LVDS screen (support most of the panels, not all) colour: green Material: plastic size: 188 * 38mm Package Contents: 1 x Driver Board 1 x English remote 1 x IR 1 x IR connection Cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.