DESCRIPTION
Mini Base Board/Mini-Computer Full Version, Designed For Raspberry Pi Compute Module 4, USB HDMI Adapter OptionalMini Base Board For Compute Module 4Designed For Raspberry Pi Compute Module 4

Waveshare CM4-IO-BASE-B (Full Ver.) Inside, Fast And Easy To Build A Mini-Computer

Version Options

* Please refer to the part list for detailed package content

Mini Base B Full Ver
the CM4-IO-BASE-B bare board only

Mini-Computer Kit
In addition to the CM4-IO-BASE-B base board, it is equipped with an Aluminum Alloy case, power supply and fan, etc.

More Available Kits

CM4-IO-BASE-B + USB HDMI Adapter
Expanding additional 2x USB And 1x HDMI Connectors Via FFC, in addition to the CM4-IO-BASE-B base board, it is equipped with a USB HDMI Adapter, FFC Cable and USB Cable, etc

Mini-Computer Kit + USB HDMI Adapter
Expanding additional 2x USB And 1x HDMI Connectors Via FFC, in addition to the CM4-IO-BASE-B base board, it is equipped with an Aluminum Alloy case, USB HDMI Adapter, 5V 3A power supply, FFC Cable and USB Cable, etc

Optional Black Metal Case

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

for reference only, CM4 and antenna are NOT included.SpecificationsCM4 SOCKETsuitable for all variants of Compute Module 4NETWORKINGGigabit Ethernet RJ45 connectorM.2 M KEY, supports communication modules or NVME Solid State DrivesCONNECTORRaspberry Pi 40PIN GPIO headerUSBUSB 2.0 Type A × 2, USB 2.0 via FFC connector × 2DISPLAYMIPI DSI display port (15pin 1.0mm FPC connector)CAMERAMIPI CSI-2 camera port × 2 (15pin 1.0mm FPC connector)VIDEOHDMI port × 2 (including one port via FFC connector), supports 4K 30fps outputRTCReal-time clock with battery socket and ability to wake Compute Module 4STORAGETF card socket for Compute Module 4 Lite (without eMMC) variantsFAN HEADERallows speed adjustment and measurement, 5VPOWER INPUT5VDIMENSIONS85 × 56mm
What's The DifferencesCM4 BASE BOARDINTERFACE COUNT AND SPECIFICATIONSPOEGIGABIT
ETH40PIN
HEADERPOWER
INPUTFEATURES
NANO A√2.0×1×15VCM4 sized
NANO B×1√2.0×1×1×1×15VCM4 sized
NANO C√2.0×1×1×1×15VOnboard Camera
DUINOM.2 M2.0×1×1×15VArduino compatible
MINI BASE A×1√M.2 M2.0×4×1×2×25V5Vmini size
MINI BASE B×1√M.2 M2.0×4×1×2×2√5V5Vmini size
MINI BASE C×1√M.2 M2.0×2×1×2√5V5VDedicated 40PIN LCD Connector
TOUCH SCREEN×1M.2 M2.0×4×1×15VIPS screen
MINI DUAL GIGABIT×2√2.0×15V SH1.05Vdual ETH
BINOCULAR CAMERA×1√M.2 M2.0×4×25Vdual 8MP
cameras
4CH RS485×12.0×2×1×2×15V7-36Vdual ETH
WIFI6 DUAL ETH×1√M.2 E2.0×3×1×2×2×15/12V7-36VWIFI6 dual ETH
DUAL GIGABIT style="box-sizing: border-box;">IOT DUAL GIGABIT ETH×2√3.0×2×1×2×2√5/12V5V5G/4G support
IOT support
RS232
RS485
ADC
POE BASE style="box-sizing: border-box;">RS485
POE UPS BASE√×1√M.2 M2.0×4×1×2×2√5/12V7-36VUPS
POE style="box-sizing: border-box;">RASPBERRY PI style="box-sizing: border-box;">WIRELESS BASE×1M.2 B /
7-36V5G/4G support
RS485
CAN
rail-mount
5″ TOUCH SCREEN②×1√M.2 M2.0×4×1×2√5/12V5V
7″ ALL-IN-ONE×1M.2 M2.0×4used×1used√5/12V
used7-36Vtouch screen
camera
speakerNOTE① 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).
Compact, Yet Complete

Onboard Multiple Connectors Including:
Precise Cut-Out With Clear Label

Each Cut-Out Is Completely Aligned With The Connector

Access To USB HDMI Adapter

More USB And HDMI Connectors Via FFC

Cooling Fan Included

Comes With Cooling Fan, Combined With The Airflow Vent, Better Heat Dissipation

Wall Mount Support

Wall Mount Holes On Two Sides, Handy For Mounting

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. DISP
   MIPI DSI display port
4. FAN
   for connecting cooling fan, allows speed adjustment and measurement
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. ACT indicator
    indicating the operating status of Raspberry Pi
11. PWR indicator
    indicating the status of Raspberry Pi power supply
12. BOOT selection
    ON: CM4 would be booted from USB-C interface
    OFF: CM4 would be booted from eMMC or TF card

13. 40PIN GPIO header
14. TF card slot
    for connecting a TF card with pre-burnt image (Lite variant ONLY)
15. HDMI1 FFC connector
    HDMI1 port, supports 4K 30fps output
16. USB 2.0 FFC connector
    can be connected through an adapter
17. FE1.1S
    USB HUB chip, expanding one USB port to 4x ports
18. M.2 slot
    supports sorts of NVME Solid State Drives, or communication modules with PCIE M.2 KEY-M interface
19. RTC chip
    allows RTC-related functions like wakeup, shutdown, reboot, and more
20. RTC interrupt selection
    PI-RUN: CM4 reboot on RTC interruption
    GN-EN: CM4 shutdown on RTC interruption
    D4: D4 pin is triggered on RTC interruption
21. EMC2301
    fan controller, for speed adjustment / measurement
22. RTC battery holder
    supports CR1220 button cell

Application Example

Suitable For Binocular Vision Raspberry Pi Projects

Access To More Peripherals Via USB HDMI Adapter

Working With Additional Solid State Drives

for reference only, display, cameras, antenna and Solid State Drives are NOT included.
Product Show

Outline Dimensions
Resources & Services

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

PACKAGE CONTENT

Weight:0.424 kg

CM4-IO-BASE-B

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

12CM4-IO-BASE-BOX-B

1. CM4-IO-BASE-B x1
2. Metal case (top and bottom) x1
3. Fan-4010-PWM-5V x1
4. OPTIONS5V 3A USB-C power adapter x1
5. Screwdriver x1
6. Screws pack x1

CM4-IO-BASE-Acce B

1. CM4-IO-BASE-B x1
2. USB HDMI Adapter x1
3. FFC cable 6PIN 1.0 pitch 60mm x1
4. FFC cable 20PIN 0.5 pitch 60mm x1
5. USB-A to USB-C cable 1m x1
6. Solid State Drives mounting screw x1

CM4-IO-BASE-Acce D

1. CM4-IO-BASE-B x1
2. Metal case (top and bottom) x1
3. USB-A to USB-C cable 1m x1
4. USB HDMI Adapter x1
5. FFC cable 6PIN 1.0 pitch 60mm x1
6. FFC cable 20PIN 0.5 pitch 60mm x1
7. Fan-4010-PWM-5V x1
8. OPTIONS5V 3A USB-C power adapter x1
9. Screws pack x1
10. Screwdriver x1