Mini Base A with Metal Case and PSU for Raspberry Pi CM4

We have included the Metal Case for Mini Base (A) Board for the CM4 Wireless module.

Metal Case for Mini Base (A) Board

Make It Easy To Build Your Own Raspberry Pi CM4 Mini PC

This metal case is meant for you to build your own Raspberry Pi CM4 Mini PC with a cooling fan, external antenna mounting, and good protection.

Rich Peripheral Connectors Opening and Cooling

With the Mini Base Board (A) onboard rich connectors:

• 2 x CSI
• 1 x DSI
• 1 x FAN Connector
• 1 x Full-size HDMI
• 2 x USB 2.0 port
• 1 x RJ45 Gigabit Ethernet
• 1 x Micro SD Card Slot
• 1 x M.2 Slot (NVMe)

Precise Cut-Outs with Clear Labels

Each Cut-Out Is Completely Aligned With The Connector!

Cooling Fan

Comes with a cooling fan, combined with the airflow vent, for better heat dissipation.

Note: External Antenna is not included.

Wall Mount Support

Wall Mount Holes On Two Sides, Handy For Mounting.

Application Examples:

Binocular Vision Raspberry Pi Projects, Or Other Industrial Context

Note: For reference only, the display, and cameras are NOT included.

Since the CM4 Lite does not come with onboard eMMC, it will need an external microSD card that has a compatible OS image to boot up. So 1st thing after you get the Piunora board and a proper power supply, you will need a microSD card (at least 8GB) with a suitable OS image in it, we recommend using the official OS for Raspberry Pi, which is Raspberry Pi OS. Due to the default settings of the USB 2.0 on CM4 (USB2.0 is disabled by default to save power), you will need to edit the config.txt on the OS, so that is the reason we recommend a microSD card pre-loaded with the official operating system and a USB microSD card reader/writer. 

A tiny and useful USB MicroSD Card Reader/Writer is included

The MakerDisk MicroSD card is tested and approved by Raspberry Pi Foundation. And it comes preloaded with the official Raspberry Pi OS. So it can boot up directly on the Mini Base (A) Board with CM4 Lite. In case you want to load another OS, you can still do it using Raspberry Pi Imager which you can download from here. It is compatible with Windows, macOS, and Unbuntu and even the Raspberry Pi itself can also load OS images using Raspberry Pi Imager.

Anyway, by default, the USB 2.0 on CM4 is DISABLED in the Raspberry Pi OS, this is to save power. You will need to edit a file on the microSD card in order to enable the USB ports on the board. Else, the USB keyboard or mouse will not be able to function, so don't be surprised.

1. Insert the microSD card into the USB MicroSD card Reader/Writer, then plug the USB Reader/Writer into your computer USB port. Please DO NOT format any of the drives.

2. Goto the boot drive and open the config.txt using a plain text editor, e.g.: Notepad

3. Add this command line (from CM4 IO Board datasheet, page 5) into the config.txt file and save it:

dtoverlay=dwc2,dr_mode=host

4. Eject the drive from your computer again, and Unplug the USB MicroSD card, Reader.

5. Insert the MicroSD card into the Mini Base (A) Board's MicroSD Slot, and mount the CM4 Lite. Connect the USB device, HDMI Cable if there is any, and lastly the Power Adapter.

6. Continue your development :)

Of course, you can also check out these accessories in case you do not have one:

• Official Raspberry Pi USB keyboard and mouse combo
• USB C Cable

Features and Spec:

• Complete kit for CM4 Lite (No eMMC)
• Comes with a well-designed carrier board and enclosure - the Metal Case for Mini Base (A) Board, the perfect CM4 carrier board for headless setup.
• Comes with a 5V 3A USB-C, EU-plug power adapter, we have included a universal AC adapter - UK plug
• A dual-band external Antenna kit for the CM4 that can be mounted to the Metal case perfectly
• MakerDisk 32GB MicroSD card with pre-loaded Raspberry Pi OS
• CM4 with Wireless, 2GB RAM, Lite (No eMMC):
  • Processor: Broadcom BCM2711, Quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
  • H.265 (HEVC) (up to 4kp60 decode), H.264 (up to 1080p60 decode, 1080p30 encode)
  • OpenGL ES 3.0 graphics
  • 2GB LPDDR4-3200 SDRAM
  •  Lite, no onboard eMMC, will require external microSD with a compatible Operating System to boot
  • built-in Fully certified radio module with :
    ◦ Dual-band WiFi: 2.4 GHz, 5.0 GHz IEEE 802.11 b/g/n/ac wireless
    ◦ Bluetooth 5.0, BLE
    ◦ Onboard electronic switch to select between external or PCB trace antenna
  • Gigabit Ethernet PHY supporting IEEE 1588
  • 1 x PCIe 1-lane Host, Gen 2 ( 5Gbps )
  • 1 x USB 2.0 port ( highspeed )
  • 28 x user GPIO supporting either 3.3V or 1.8V signaling and various interface options:
    • Up to 6 x UART
    • Up to 6 x I²C
    • Up to 5 x SPI
    • 1 x SDIO interface
    • 1 x DPI (Parallel RGB Display)
    • 1 x PCM
    • Up to 2 x PWM channels
    • Up to 3 x GPCLK outputs
  • 2 x HDMI 2.0 ports (up to 4kp60 supported)
  • MIPI DSI:
    • 1 x 2-lane MIPI DSI display port
    • 1 x 4-lane MIPI DSI display port
  • MIPI CSI-2:
    • 1 x 2-lane MIPI CSI camera port
    • 1 x 4-lane MIPI DSI camera port
  • 1 x SDIO 2.0 (CM4Lite only)
  • Single +5VDC Power Supply Unit input
  • Small Footprint 55mm x 40mm x 4.7mm with 4 x M2.5 mounting holes

• Metal Case for Mini Base (A) Board:
  • Metal Case designed to protect Raspberry Pi Compute Module 4 and the Mini Base Board (A)
  • Precise cutting with clear labeling  for each and every peripheral port
  • Comes with a cooling fan to ensure the heat dissipation for CM4
  • Extra antenna mounting hole for the external antenna which improves wireless connectivity
  • Wall-mount ready
  • Outline Dimensions:

• 1 x CM4 Mini Base (A) Board
  • 1 x Screw set for mounting and assembly
• 1 x Metal Case for Mini Base (A) Board:
  • 1 x Metal Case
  • 1 x Cooling Fan
  • 1 x Pair of Wall Mount Bracket
  • 1 x Small Philip Head Screwdriver
• 1 x 17.5W 5V 3.5A USB-C Universal Power Adapter - UK-EU-US Plug

• CM4 Mini Base Board (A) Wiki Page by Waveshare
• Compute Module 4 Product Brief
• Compute Module 4 datasheet
• Compute Module 4 STEP file
• Compute Module 4 Lite (without eMMC) STEP file
• BCM2711 (Processor SoC) Peripherals
• Raspberry Pi Getting Started by raspberrypi.org