Raspberry Pi Compute Module 4 Mini-Computer Base Board (C) (23926)

TheRaspberry Pi Compute Module 4 Mini-Computer Base Board (C) (23926 ) is a kit that includes the Raspberry Pi Compute Module 4 I/O Mini Base Board (C) (23228) and a metal case with a cooling system. It allows you to assemble a mini computer: in addition to the CM4-IO-BASE-C base board, it comes with an aluminum alloy case, power supply and fan, etc.

An expansion board specially designed for the Raspberry Pi Compute Module 4 (CM4). The CM4 is a computer module based on the Raspberry Pi 4 architecture, but with a smaller form factor that allows it to be easily integrated into various project devices. The main purpose of the Raspberry Pi Compute Module 4 I/O Mini Base Board (C) is to provide additional connectors and interfaces for connecting external devices to the CM4. The board has GPIO, HDMI, USB, Ethernet, and other connectors that allow you to connect a variety of peripherals such as displays, cameras, sensors, USB devices, and more.

The Raspberry Pi Compute Module 4 I/O Mini Base Board (C) extends the capabilities of the CM4 and provides more flexibility for CM4-based project development. It provides convenient connectors and interfaces for connecting a variety of devices and allows you to focus on developing project functionality without wasting time designing your own expansion board.

The metal housing provides additional protection and cooling for the CM4.

*For reference only, CM4 is NOT included.

Specifications

• CM4 SOCKET: Fits all Compute Module 4 variants
• NETWORK: Gigabit Ethernet RJ45 connector
• CONNECTOR: M.2 M KEY, supports communication modules or NVME SSDs
• Raspberry Pi: 40-pin GPIO connector
• USB: USB 2.0 type A × 2
• DISPLAY: LCD port (40-pin 0.5 mm FPC connector)
• CAMERA: MIPI CSI-2 × 2 camera port (15-pin 1.0 mm FPC connector)
• VIDEO: HDMI port, supports 4K 30fps output
• RTC: real-time clock with battery slot and Compute Module 4 output capability
• STORAGE: TF card slot for Compute Module 4 Lite variants (without eMMC)
• FAN SOCKET: Allows for adjustable speed, 5V
• POWER INPUT: 5В
• BOARD DIMENSIONS: 85 × 56 mm

Connecting cables are located in the same direction, which ensures neatness and convenience

Board elements:

1. CM4 connector: suitable for all Compute Module 4 variants
2. Input power/programming: 5V/2.5A power supply or used for eMMC writing
3. LCD port: 40-pin LCD port for direct connection to 70H-1024600 series display
4. FAN: for connecting a cooling fan, allows speed adjustment via I/O ports
5. CAM: 2 MIPI CSI camera ports
6. HDMI0 connector: HDMI0 port, supports 4K 30fps output
7. USB 2.0 ports: 2 USB 2.0 ports for connecting a variety of USB devices
8. Gigabit Ethernet connector: RJ45 Gigabit Ethernet connector with 10/100/1000M network support
9. M.2 indicator: indicates the operating status of the M.2 interface
10. Raspberry Pi indicators:
    1. Green LED: PWR, indicating the status of the Raspberry Pi power supply
    2. Red LED: ACT, indicating the operating status of the Raspberry Pi
11. Boot switch:
    1. ON: CM4 will boot from the USB-C interface
    2. OFF: CM4 will boot from an eMMC or TF card
12. 40-pin GPIO connector for connecting various kinds of HATs
13. TF card slot for connecting a TF card with a pre-recorded image (for the simplified version ONLY)
14. FE1.1S: USB HUB chip, supports USB port expansion
15. M.2 slot supports NVME SSDs or communication modules with PCIE M.2 KEY-M interface
16. RTC chip enables RTC-related functions such as wake-up, shutdown, reboot, etc.
17. Selects the RTC interrupt:
    1. GN-EN: terminate CM4 (default) after RTC interrupt
    2. PI-RUN: restart CM4 after an RTC interrupt
    3. D4: D4 pin is triggered by an RTC interrupt
18. RTC battery holder supports CR1220 button cell

Precise cutout with clear label
Each cutout is fully aligned with the connector

Cooling fan included
Comes with a cooling fan combined with a vent for better heat dissipation

*For reference only, antenna is NOT included

Industrial rail mounted design
Suitable for scenarios that require rail mounting, more stable installation

Support for wall mounting
Wall mounting holes on both sides, convenient for mounting

Overall dimensions: 113mm x 76mm x 32.6mm

WIKI: www.waveshare.com/wiki/CM4-IO-BASE-C

1. CM4-IO-BASE-BOX-C x1
2. Metal case (top and bottom) x1
3. Fan-4010-PWM-5V x1
4. Rubber plug for antenna connector x1
5. Buckle on the rail x1
6. Power supply 5 V 3 A type C x1
7. Package of screws x1 pc

Weight: 0.29 kg