This 7 inch HDMI display is have 1024x600 resolution with 5 point capacitive touch screen. and the RPI can be easily installed on the back of the display through the 4 positioning holes .It can also be used as a second HDMI display for a computer.Integrated audio amplifier and 2x3W speakers. | On-board CH340E chip with selectable RS232 or RS485 functions via a DIP switch, DB9 interface. TXD/RXD signal has LED indicator to show the communication transceiver process. Can connect with PLC, step/servo driver, LORA module... | One AV signal input socket can be connected to an external analog camera, and 3 PH1.5 analog signal input sockets can be connected to a mini analog camera. | One SSD module mounting position can install ElecLab NGFF 2242 SSD For USB 3.0 module or others. One minipcie socket can install SIM7600 series 4G module or low cost SIM868 2G module. | A universal HDMI cable to connect to the computer is not included!!!