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Raspberry Pi: Bring the mini-ITX form factor to the Compute Module 4 with the Over:Board

The Over:Board transforms the CM4 into a mini-ITX motherboard. (Image source: OVER:DEVICES)
The Over:Board transforms the CM4 into a mini-ITX motherboard. (Image source: OVER:DEVICES)
The Over:Board is a carrier board for the Raspberry Pi Compute Module 4 that turns the compact machine into a mini-ITX motherboard. The Over:Board features a host of I/O, including dual HDMI and USB 2.0 ports. There is a PCI-Express slot too, along with a CPU fan header.

The Raspberry Pi Compute Module 4 (CM4) is currently one of the fastest available Raspberry Pi versions, and is actually more overclockable than the Raspberry Pi 4 thanks to its newer chipset revision. The Over:Board transforms the CM4 into a mini-ITX motherboard though, opening the minature machine to the world of PCs. The Over:Board is a carrier board though, so it does not feature a built-in CM4. Instead, you must supply one yourself, but the CM4 retails for as little as US$25.

The Over:Board itself provides a full-size PCIe slot, along with a SATA connector to connect an HDD or SSD. Additionally, there are two USB 2.0 Type-A ports, a micro USB port, a microSD card reader and a 40-pin GPIO header, among other connections. OVER:BOARD has included a CPU fan header for cooling the CM4, too. The full list of I/O that the Over:Board features is as follows:

  • 3.5 mm audio jack
  • 40-pin Raspberry Pi GPIO header
  • CPU fan header
  • Gigabit Ethernet jack
  • 2x HDMI ports
  • 1x micro USB port
  • microSD card reader
  • PCI-Express slot
  • RS-232 COM port
  • RTC with backup battery
  • SATA connector
  • UART header
  • 2x USB 2.0 ports
  • USB Audio controller
  • USB SATA controller

The Over:Board is available to back on Indiegogo from £99 (~US$134). The manufacturer hopes to begin delivering the board in September 2021. However, OVER:DEVICES is also offering pre-production and prototype boards, which it estimates will be available to ship in May 2021 and March 2021, respectively. However, these cost more than the final board, with OVER:DEVICES pricing the pre-production board at £149 (~US$201) and the prototype one at (~US$269).

(Image source: OVER:DEVICES)
(Image source: OVER:DEVICES)
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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2021 01 > Raspberry Pi: Bring the mini-ITX form factor to the Compute Module 4 with the Over:Board
Alex Alderson, 2021-01-12 (Update: 2021-01-12)
Alex Alderson
Alex Alderson - News Editor - @aldersonaj
Prior to writing and translating for Notebookcheck, I worked for various companies including Apple and Neowin. I have a BA in International History and Politics from the University of Leeds, which I have since converted to a Law Degree. Happy to chat on Twitter or Notebookchat.