DATASHEET
https://datasheets.raspberrypi.com/rpi4/raspberry-pi-4-datasheet.pdfThe Pi4B has 1x Raspberry Pi 2-lane MIPI CSI Camera and 1x Raspberry Pi 2-lane MIPI DSI Display connector. These connectors are backwards compatible with legacy Raspberry Pi boards, and support all of the available Raspberry Pi camera and display peripherals. 5.3 USB The Pi4B has 2x USB2 and 2x USB3 type-A sockets.