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CM4-IO-BASE-Acce C - set for building a minicomputer based on Raspberry Pi CM4 + USB HDMI adapter

A set for building a minicomputer based on Raspberry Pi CM4. It consists of a metal case with a fan, a power supply and a Mini Base Board (A) and a USB HDMI to FCC adapter. Waveshare CM4-IO-BASE-Acce C

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ID: 586733

36,83€ gross (23% VAT)
29,94€ net

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A set for building a minicomputer based on Raspberry Pi CM4 modules. It consists of a metal housing with a fan, a power supply and a Compute Module 4 Base Board (A) and USB HDMI to FCC adapter.

CM4-IO-BASE-A is equipped with special connectors for connecting the module and the outputs of all CM4 module interfaces, including USB, Ethernet, HDMI, DSI, two CSI connectors, 40-Pin GPIO connector compatible with HAT modules. The Mini Base Board is additionally equipped with a microSD card slot. At the bottom of the board, there is also an M.2 connector for connecting additional modules or a disk, and an FFC connector with USB 2.0 and HDMI interface. Full documentation is available on the product Wiki page.

Compared to version B, the board has no RTC clock, fan controller and battery socket. The 40-pin connector is color-coded, which makes it easy to connect expansion modules. The board has compact dimensions (85 x 56 mm) corresponding to the dimensions of the Raspberry Pi 4 model B minicomputers, thanks to which, after connecting the Raspberry Pi CM4 module (not included), it can be a replacement for standard Raspberry Pi minicomputers.

The metal case has openings for all connectors and a fan cutout, which ensures better cooling of the system. It is equipped with numerous holes for easy mounting, for example on the wall.

Adapter with USB and HDMI connectors connected via FFC tape. It allows you to add two USB connectors and HDMI connectors for base boards.


  • Compute Module 4 Base Board (A)
    • CM4 connector: suitable for all variants of the Raspberry Pi CM4 module (not included)
    • Standard 40-pin Raspberry Pi HAT connector
    • HDMI connector
    • 2 x CSI camera connector
    • DSI Display Connectors
    • RJ45 Gigabit Ethernet connector
    • Built-in USB Hub with 2 USB 2.0 connectors
    • USB type C connector for power and programming
    • MicroSD card slot
    • 5V fan connector
    • Power supply: USB type C
    • Dimensions: 85 x 56 mm
  • Holes for all board connectors
  • Fan cutout (fan included)
  • Multiple mounting holes
  • 5V 3A USB Type-C power adapter
  • Dimensions: 88.1 x 99.8 x 33 mm

Kit contains

  • Case (two parts)
  • Compute Module 4 IO Base Board (A) (without Raspberry Pi CM4 module)
  • Screwdriver
  • Fan-4010-PWM-12V fan
  • A set of screws
  • USB Type-C 5V 3A power supply
  • USB HDMI adapter
  • FFC 6-pin cable, pitch 1.0 60 mm
  • FFC 20-pin cable, pitch 0.5 60 mm
  • USB Type-C cable