Mini Base Board (C) Designed for Raspberry Pi Compute Module 4

$21.99 - $35.99


Mini Base Board/Mini-Computer Advanced Version, Designed for Raspberry Pi Compute Module 4
Mini Base Board For Compute Module 4 (Advanced Version)
Designed for Raspberry Pi Compute Module 4

Waveshare CM4-IO-BASE-C (Advanced Ver.) inside, fast and easy to build a mini-computer

Version Options

* Please refer to the part list for detailed package content

MINI BASE C Advanced Ver

Mini-Computer Kit
In addition to the CM4-IO-BASE-C Base Board, it is equipped with Aluminum Alloy case, power supply and fan, etc.

Dedicated 40PIN LCD Connector

One connection For Display And Touch, Support 70H-1024600-IPS-A Series Display
Easier and Faster To Be Integrated into Applications

Optional Black Metal Case

make it easy to build your own Raspberry Pi CM4 mini PC

for reference only, CM4 is NOT included.
CM4 socket suitable for all variants of Compute Module 4
Networking Gigabit Ethernet RJ45 connector
Connector M.2 M KEY, supports communication modules or NVME Solid State Drives
Raspberry Pi 40PIN GPIO header
USB USB 2.0 Type A × 2
Display LCD port (40pin 0.5mm FPC connector)
Camera MIPI CSI-2 camera port × 2 (15pin 1.0mm FPC connector)
Video HDMI port, supports 4K 30fps output
RTC Real-time clock with battery socket and ability to wake Compute Module 4
Storage TF card socket for Compute Module 4 Lite (without eMMC) variants
Fan header allows speed adjustment, 5V
Power input 5V
Dimensions 85 × 56mm
What's the differences
CM4 Base Board Interface count and specifications
PoE Gigabit

    2.0×1     ×1   5V CM4 sized

×1   2.0×1 ×1 ×1 ×1   5V CM4 sized

  2.0×1 ×1 ×1 ×1   5V Onboard Camera

mini Base A
×1 M.2 M 2.0×4 ×1 ×2 ×2 5V 5V mini size

mini Base B
×1 M.2 M 2.0×4 ×1 ×2 ×2 5V 5V mini size

mini Base C
×1 M.2 M 2.0×2 ×1 ×2 5V 5V Dedicated 40PIN LCD Connector

Touch screen
×1   M.2 M 2.0×4   ×1 ×1     5V IPS screen

Mini Dual Gigabit
×2   2.0×1         5V SH1.0 5V dual ETH

Binocular camera
×1 M.2 M 2.0×4   ×2       5V dual 8MP

4CH RS485
×1     2.0×2   ×1 ×2 ×1 5V 7-36V dual ETH

×1 M.2 E 2.0×3 ×1 ×2 ×2 ×1 5/12V 7-36V WIFI6 dual ETH

Dual Gigabit ETH
×2 3.0×3 ×1 ×2 ×2 5/12V 7-36V

IoT Dual Gigabit ETH
×2 3.0×2 ×1 ×2 ×2 5/12V 5V 5G/4G support

IoT Base
×1 Gen2×1 2.0×2 ×2 ×2 ×2 5/12V 7-36V 5G/4G support

PoE Base (B)
×1 Gen2×1 2.0×4 ×2 ×2 ×2 5/12V 5V RS232

PoE UPS Base
×1 M.2 M 2.0×4 ×1 ×2 ×2 5/12V 7-36V UPS

PoE Base
×1 3.0×4 ×2 ×2 ×2 5/12V 7-36V

Raspberry Pi official
×1 Gen2×1 2.0×4 ×2 ×2 ×2 12V 12V

Wireless base
  ×1   M.2 B /
2.0×3   ×1 ×1 5/12V 5V or
5G/4G support

UPS Wireless base
  ×1   M.2 B 2.0×3   ×1 ×1 5/12V 5V or
With UPS
5G/4G support

NAS Mini Computer
  ×2 M.2 M×2/
3.0×2   ×2 ×2   5V dual M.2 M KEY slots

5″ touch screen
×1 M.2 M 2.0×4   ×1 ×2 5/12V 5V  

7″ all-in-one
  ×1   M.2 M 2.0×4 used ×1 used 5/12V
7-36V touch screen

13.3″ all-in-one
  ×1     2.0×2           12V HD touch screen

13.3″ Magic Mirror
  ×1     2.0×2           12V HD screen,
Speech Assistant
Note ① USB 3.0 is equivalent to USB 3.2 Gen1
② There's PoE header only on the Raspberry Pi official IO board without PoE circuit, that means additional PoE module is required for the official IO board to enable PoE feature.
Unless otherwise specified, the PoE feature here stands for integrating 802.3af-compliant PoE circuit (5V/2.5A).
Same direction interfaces

The connection cables are in the same direction, neat and convenient

for reference only, please refer to the part list for detailed package content
Compact, yet Complete
Precise cut-out with clear label

each cut-out is completely aligned with the connector

Cooling fan included

comes with cooling fan, combined with the airflow vent, better heat dissipation

for reference only, the antenna is NOT included
Industrial Rail-Mount Design

Suitable for scenarios that require rail mounting, more stable installation

Wall mount support

wall mount holes on two sides, handy for mounting

Application example

Suitable for binocular Vision Raspberry Pi Projects

Working With An Additional Solid State Drives

for reference only, display, cameras, antenna and Solid State Drives are NOT included.
What's On Board
  1. CM4 socket
    suitable for all variants of Compute Module 4
  2. Power input/Programming
    5V/2.5A power supply, or used for eMMC burning
  3. LCD Port
    40PIN LCD display port, for direct connection to 70H-1024600 series display
  4. FAN
    for connecting cooling fan, allows speed adjustment via IO ports
  5. CAM
    2x MIPI CSI camera ports
  6. HDMI0 connector
    HDMI0 port, supports 4K 30fps output
  7. USB 2.0 ports
    2x USB 2.0 ports, for connecting sorts of USB devices
  8. Gigabit Ethernet connector
    Gigabit Ethernet RJ45 connector, with 10 / 100 / 1000M network support
  9. M.2 indicator
    indicating the operating status of M.2 interface
  10. Raspberry Pi indicators
    Green LED: PWR, indicating the status of Raspberry Pi power supply
    Red LED: ACT, indicating the operating status of Raspberry Pi
  1. Boot switch
    ON: CM4 would be booted from USB-C interface
    OFF:CM4 would be booted from eMMC or TF card
  2. 40PIN GPIO header
    for connecting sorts of HAT
  3. TF card slot
    for connecting a TF card with pre-burnt image (Lite variant ONLY)
  4. FE1.1S
    USB HUB chip, support expanding USB port
  5. M.2 slot
    supports sorts of NVME Solid State Drives, or communication modules with PCIE M.2 KEY-M interface
  6. RTC chip
    allows RTC-related functions like wakeup, shutdown, reboot, and more
  7. RTC interrupt selection
    GN-EN: CM4 shutdown(by default) on RTC interruption
    PI-RUN: CM4 reboot on RTC interruption
    D4: D4 pin is triggered on RTC interruption
  8. RTC battery holder
    supports CR1220 button cell
Product show
Outline dimensions
Resources & Services

* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.

Quick Overview


  1. CM4-IO-BASE-C x1
  2. Solid State Drives mounting screw x1


  1. CM4-IO-BASE-BOX-C x1
  2. Metal case (top and bottom) x1
  3. Fan-4010-PWM-5V x1
  4. Antenna connector rubber plug x1
  5. Rail-mount buckle x1
  6. OPTIONS 5V 3A Type-C Power supply x1
  7. Screws pack x1