The Mini Base Board (A) is a compact carrier board designed for the Raspberry Pi Compute Module 5 (CM5). It supports all CM5 variants — both Lite and eMMC — and provides a rich set of interfaces including dual HDMI output, USB 3.2, Gigabit Ethernet, PCIe, and a 40-pin GPIO header.

The board measures just 85 × 56 mm, making it suitable for embedded applications, custom mini computers, media centres, and industrial control systems. A cooling fan and PWM connector are included to keep the CM5 running within optimal temperatures.

Key Features

• CM5 Compatible – Socket for all Raspberry Pi Compute Module 5 variants (Lite and eMMC)
• Dual HDMI Output – Two HDMI ports supporting 4K displays
• USB 3.2 Gen 1 – 2× USB Type-A ports (up to 5 Gbps)
• USB 2.0 – 2× additional ports via 6-pin 1 mm FFC connector
• Gigabit Ethernet – RJ45 connector supporting 10/100/1000 Mbps
• PCIe Interface – Expansion for NVMe SSDs, network cards, and other PCIe devices
• 40-Pin GPIO Header – Standard Raspberry Pi GPIO pinout
• Dual MIPI Interfaces – DSI (display) and CSI (camera) connectors
• TF Card Slot – For CM5 Lite variants without onboard eMMC
• Cooling Fan Included – 4-pin JST-SH PWM connector for active cooling
• Flexible Power – 5 V / 5 A DC input
• Mounting Options – Wall-mount brackets and rail-mount buckle included

Specifications

• Board Dimensions – 85 × 56 mm
• Case Dimensions – 90 × 68 mm (with optional aluminium alloy case)
• Power Input – DC 5 V / 5 A
• Weight – 44 g (board only)

Ideal For

• Custom mini computers and media centres
• Industrial control and monitoring systems
• IoT gateways and embedded applications
• Digital signage with dual-screen output
• Development and prototyping with CM5

Package Contents

• 1× Mini Base Board (A)
• 1× Cooling fan
• 1× Mounting hardware (wall-mount brackets and rail-mount buckle)

Resources

• Waveshare Wiki – CM5 Mini Base Board (A)