Waveshare CM4 Mini-Computer Case with IO Base - Compact Raspberry Pi

In this review the Waveshare Mini-Computer Based on Raspberry Pi Compute Module 4 (NOT Included) is evaluated for makers and integrators who need a compact, ready-built enclosure and IO base for a CM4 board. The biggest reason to buy is convenience: it combines a Waveshare CM4-IO-BASE-A (Lite Ver.) inside a metal case with a cooling fan and a wide set of onboard connectors so builders avoid cutting panels or wiring a custom backplane. This review focuses on how the unit handles connectivity, cooling and practical mounting for small projects.

Key Features

• Integrated IO base: The built-in CM4-IO-BASE-A (Lite Ver.) provides exposed connectors so users can attach displays, storage and network hardware without extra wiring.
• Rich peripheral connectors: Onboard CSI, DSI, HDMI, USB and RJ45 Gigabit Ethernet make it straightforward to connect cameras, touch displays, monitors, peripherals and wired networks.
• Active cooling included: The supplied 5V cooling fan plus airflow vents help keep the Compute Module 4 cooler under load for sustained operation.
• Precise metal cut-outs: Each case opening is aligned and labeled so connectors are accessible without modification, reducing build time and risk of damage.
• Wall mount support: Built-in mounting holes let the enclosure be secured to walls or panels for embedded installations or kiosks.
• Expandable storage slot: A Micro SD slot and M.2 slot on the IO board allow flexible storage options for different projects.

Who It's For

The Waveshare CM4 mini-computer case is well suited for hobbyists, makers and integrators who already use the Raspberry Pi Compute Module 4 and want a neat, ready-made enclosure with the IO base included. It is particularly useful when a small footprint, wall mount capability and direct access to camera or display connectors are required.

It is not aimed at users who expect a fully assembled computer out of the box, as the CM4 is not included. Also, anyone needing a 12V fan, or an enclosure with DSI1 display routing, should look elsewhere or confirm compatibility before buying.

Pros & Cons

Pros

• Complete IO base integration simplifies builds and reduces wiring time for CM4 projects.
• Multiple onboard ports including Gigabit Ethernet and HDMI cover common connectivity needs without adapters.
• Metal case and active cooling make the unit suitable for longer duty cycles and more robust installations.

Cons

• Compute Module 4 is not included, so additional purchase and installation are required to operate the mini-computer.
• The fan must be 5V; the case does not support 12V fans so cooling upgrades are limited by voltage.

Specifications

Included board	Waveshare CM4-IO-BASE-A (Lite Ver.) inside
Compatible compute module	Raspberry Pi Compute Module 4 (NOT included)
Case material	Metal
Cooling	5V cooling fan with airflow vent
Onboard connectors	CSI, DSI (DSI0), HDMI, USB, RJ45 Gigabit Ethernet
Storage	Micro SD card slot and M.2 slot
Mounting	Wall mount holes on two sides

Our Verdict

The Waveshare CM4 mini-computer case is a practical choice for anyone building a CM4-based mini PC or embedded system who values tidy OEM-style integration of ports, cooling and mounting. It saves time over fabricating a custom enclosure and provides solid connectivity and thermal management, making it good value for makers and small-scale integrators who already plan to supply a Compute Module 4.

Frequently Asked Questions

Does the package include the Compute Module 4?
No, the unit ships without the Raspberry Pi Compute Module 4; the IO base and metal case are included only.

What fan voltage does it use?
The built-in cooling fan requires 5V; the enclosure does not support a 12V fan.

Can I use the Type-C port to flash the CM4 image?
Yes, the Type-C interface can be used for power or as a USB SLAVE interface for burning an image; avoid connecting other devices while flashing to ensure stable power.