Raspberry Pi CM4-to-Pi4-Adapter User Guide


  • This is a CM4 To Pi 4B Adapter for Raspberry Pi and is an alternative solution for Raspberry Pi 4B.
  • Onboard 4 x USB3.0 port, Gigabit Ethernet port, PoE header, and so on.


  • Onboard standard CM4 connector, support access to CM4 Lite / eMMc series boards with Quad Core Cortex A72 64-bit processor, more powerful performance
  • Easily compatible with the interfaces of Raspberry Pi 4B board
  • Onboard 4-ch USB 3.0 ports, compatible with USB 2.0 / 1.1 transmission
  • Onboard RJ45 Gigabit Ethernet port, 10 / 100 / 1000 M adaptive
  • Onboard PoE header, for connecting PoE HATs
  • DSI interface is DSI1
  • USB Type C interface is for the power supply or can be used as the USB SLAVE interface for programming images
  • Do not connect to other devices when using the micro USB port to program the image for ensuring the power supply of CM4
  • CM4 must be provided by 5V 2A, or it will shut down, lower frequency, etc.

Based On Raspberry Pi CM4

Use CM4 To Reproduce The Original Appearance Of The Pi 4B As Much As Possible

More Cost-Effective Choice

for reference only, CM4 is NOT included

Install CM4 Easily

Onboard Standard CM4 Connector

Support Access To Compute Module 4 Lite / EMMC Series Boards

for reference only, CM4 is NOT included.

Interface Introduction

Compatible With Pi 4B Series HATs

Easy Access To Pi 4B Series HATs Or Other Development Projects

for reference only, RS485 CAN HAT (B) is NOT included.

Outline Dimensions

Price: $25.89
Part Number: CM4-to-Pi4-Adapter
Brand: Spotpear
SKU: 0101445