This all-in-one expansion board breaks out your Raspberry Pi Compute Module 4 with a buffet of useful IO and connection options, whilst also providing a 5" 800x480 5-point capacitive touch screen! The rear of the board provides a huge list of useful breakouts for your CM4 board: * M.2 slot (for 2242-size NVMe M-Key SSD) * Not compatible with the Raspberry Pi SSD (as it's only 2230 size) * 4x USB 2.0 * Gigabit Ethernet * Dual MINI CSI-2 Ports (15-pin 1mm pitch) for Raspberry Pi Camera Modules * RTC with backup battery socket (CR1220) * 40-pin GPIO header * PoE Header (PoE HAT required for PoE operation) * BOOT switch * Micro-SD card slot (when using Lite CM4 only) * USB-C power/programming port * Full-size HDMI port (supports 4K 30FPS) * 4-pin fan header (ideal fan option here!) * System function selector pads * I2C BUS selection pads * RTC interrupt toggle pads * VREF selection pads * Indication LEDs All of this along with a 5" display with a respectable 800x480 resolution with 5-point capacitive touch! We recommend fully reading the product wiki before purchasing to ensure a full understanding of the feature set and any limitations/compatibility for your intended project or usage. Notes * The USB SLAVE interface is used to burn the image and cannot be used as an OTG interface. * In normal use, it is necessary to provide at least 5V 2.5A power supply for CM4. Otherwise, there may be problems such as automatic shutdown and frequency reduction * Onboard default 4-way USB 2.0 interface. * Supports PoE via 4-pin header, additional PoE HAT is required for PoE * The display requires a driver * Do not plug and unplug any device except USB and HDMI while the baseboard is working * If the fan needs to be replaced, please confirm the fan voltage and then power on Specifications CM4 Socket Suitable for all variants of CM4 Networking Gigabit Ethernet RJ45 connector M.2 M KEY, supports 2242-size NVME SSD PoE PoE header (additional PoE HAT required) USB USB 2.0 × 4 Display 5″ screen, 800 × 480 pixels 5-point capacitive touch Camera MIPI CSI-2 port × 2 (15pin 1.0mm FPC) Video HDMI, supports 4K 30fps output RTC Real-time clock with battery socket + ability to wake CM4 Storage MicroSD socket for CM4 Lite (without eMMC) variants Fan Header Allows speed adjustment/measurement, 5V / 12V Power Input 5V Dimensions 127.7 × 87.45mm Package Contents * 1x 5″ Touch Screen Expansion for Raspberry Pi CM4 CM4, SSD, MicroSD and PoE HAT not included Resources * Product Wiki https://elecena.pl/product/22727865/5-touch-screen-expansion-for-raspberry-pi-cm4 2023-03-07 https://elecena.pl/product/22727865/5-touch-screen-expansion-for-raspberry-pi-cm4 2023-12-27 https://elecena.pl/product/22727865/5-touch-screen-expansion-for-raspberry-pi-cm4 2024-09-18 https://elecena.pl/product/22727865/5-touch-screen-expansion-for-raspberry-pi-cm4 2024-11-29 https://elecena.pl/product/22727865/5-touch-screen-expansion-for-raspberry-pi-cm4 2024-11-30 https://elecena.pl/product/22727865/5-touch-screen-expansion-for-raspberry-pi-cm4 2025-08-06 https://elecena.pl/product/22727865/5-touch-screen-expansion-for-raspberry-pi-cm4 2025-11-28 https://elecena.pl/product/22727865/5-touch-screen-expansion-for-raspberry-pi-cm4 2025-11-29