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- SKU: 20157
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The Compute Module 4 PoE 4G Board is an industrial-grade IO baseboard designed for Raspberry Pi Compute Module 4 (not included). It is a baseboard that can be used with Raspberry Pi Compute Module 4, and supports PoE power supply and 5V DC power supply, and has four USB2.0 onboard, which is convenient for users to use.
Specifications
| CM4 SOCKET | suitable for all variants of Compute Module 4 |
|---|---|
| NETWORKING | Gigabit Ethernet RJ45 connector, integrates 802.3af-compliant PoE circuit (5V/2.5A) |
| CONNECTOR | Raspberry Pi 40PIN GPIO header, non-isolated RS485, non-isolated RS232, PCIe Gen 2 × 1 |
| USB | USB 2.0 Type A × 4 |
| DISPLAY | MIPI DSI display port × 2 (15pin 1.0mm FPC connector) |
| CAMERA | MIPI CSI-2 camera port × 2 (15pin 1.0mm FPC connector) |
| VIDEO | HDMI port × 2, supports 4K 30fps output |
| RTC | Real-time clock with battery socket and ability to wake Compute Module 4 |
| STORAGE | MicroSD card socket for Compute Module 4 Lite (without eMMC) variants |
| FAN HEADER | allows speed adjustment and measurement, 5V / 12V |
| POWER INPUT | 5V |
| DIMENSIONS | 124.5 × 108.8mm |
Resources
Onboard Peripherals

- CM4 socket
suitable for all variants of Compute Module 4 - 40PIN GPIO header
- BOOT selection
ON: CM4 would be booted from USB-C interface
OFF: CM4 would be booted from eMMC or Micro SD card - Misc functional pins
- USB Type-C power supply / programming
5V/2.5A power supply,
also allows burning system image into Compute Module 4 eMMC variants - Status indicators
ACT: Raspberry Pi operating status indicator
PWR: Raspberry Pi power indicator - DISP
2x MIPI DSI display port - CAM
2x MIPI CSI camera ports - USB2.0 ports
4x USB2.0 ports, for connecting sorts of USB devices
- HDMI ports
2x HDMI ports, supports dual 4K 30fps output - RTC battery holder
supports CR1220 button cell - FAN header
for connecting cooling fan, allows speed adjustment and measurement - PCIe Gen 2 × 1 socket
forconnecting PCIe Gen 2 × 1 modules - Gigabit Ethernet connector
Gigabit Ethernet RJ45 with PoE support, 10/100/1000M compatible - DC 5V output
- RS485
with 600W lightningproof, anti-surge, and 15KV ESD protection,
reversed optional 120R balancing resistor jumper - RS232
with TVS diode, anti-surge, and ESD protection - Buzzer
- FAN_VDD/PoE selection
cooling fan driving voltage: 12V or 5V
PoE: enable (EN) or disable (DIS)

- FE1.1S
USB expansion chip - PCF52063ATL
RTC chip - RTC/FAN
I2C bus switch,
SDA0/SCL0: I2C-10 is shared with CSI/DSI
GPIO3/2: I2C-1 is shared with 40PIN header - IO logic level selection
set the CM4 IO logic level as 3.3V or 1.8V
- RTC interruption configuration
PI-RUN: CM4 will reboot on RTC interruption
GN-EN: CM4 powerdown on RTC interruption
D4: D4 pin is triggered on RTC interruption - Micro SD card slot
insert a Micro SD card with pre-burnt system, to start up Compute Module 4 Lite
Warranty Terms :
Branded products (Waveshare/ Raspberry Pi/ Radxa/ DWIN etc) are as per brand warranty terms. Generic products are eligible for replacement within 7 days of delivery based on following conditions.
Products are eligible for a replacement if there is physical damage during transit or a clear manufacturing defect. Any claim for damage/ wrong items/ replacement must be made within 48 hours of successful delivery of the product. Requests for refund of amount or exchange of product(s) will be reviewed on a case by case basis and HUBTRONICS carries final rights to take a final decision on refund, store credit or exchange.
What to take care of ?
Most of our products are technical in nature and require trained personnel to handle them. Any kind of mishandling can result in damage or malfunctioning of the product, it is not possible for us to provide a replacement or refund if the product is damaged due to technical or physical mishandling.
Who pays the return shipping cost?
Free of cost return pickup from delivery address is eligible for products categorized as manufacturing defect/ Damage in transit/ Wrong items delivered. We do not support return pickup for any B2B order or offline orders not placed on website. Buyer need to arrange return shipping for B2B orders.
What voids warranty?
Please note that replacement/ return or refund is not possible if the product is not compatible with your system/application. Please check all the technical details/ dimensions etc. before ordering and contact us for any kind of clarifications.
If product is soldered/ programmed at any point or physically altered in any way, it is not eligible for return/ replacement. If the item requires soldering for testing, please ensure that you use suitable clips or jig to test it without soldering. Any kind of soldering job makes the product ineligible for return or replacement.
Following items are not eligible for return under any circumstances
- Device Programmers / Dongles
- Soldering Consumables (Wire, Flux etc)











