Waveshare Nano Base Board B for Raspberry Pi CM4 | Compact CM4 Carrier Board

The Waveshare Nano Base Board B is a compact carrier board designed for the Raspberry Pi Compute Module 4 (CM4). Matching the exact footprint of the CM4 itself (56 × 41mm), it's ideal for product evaluation, prototyping, and integration into end products where space is at a premium.

Key Features

• Compatible with all Raspberry Pi CM4 variants
• Compact form factor — same size as CM4 (56 × 41mm)
• Mini HDMI output supporting 4K @ 30fps
• Gigabit Ethernet via RJ45 connector
• 40-pin GPIO header (colour-coded straight pin header included)
• MIPI DSI display port (15-pin 1.0mm FPC)
• MIPI CSI-2 camera port (15-pin 1.0mm FPC)
• USB 2.0 Type-A connector
• 3.5mm audio jack
• Micro SD card slot (for CM4 Lite / non-eMMC variants)
• 5V power input

What's in the Box

• 1 × CM4-NANO-B base board
• 1 × 2×20-pin colour-coded straight pin header

Specifications

• Dimensions: 56 × 41mm
• Power input: 5V
• Package weight: 0.04kg
• Package size: 15 × 12 × 2cm