
Mini Base Board (B) designed for Raspberry Pi CM5, Onboard EEPROM & Encryption Chip
- Brand
- Waveshare
- SKU:
- 874-2
- Condition:
- New
- Compatibility:
- CM5

Waveshare 30703 - Mini Base Board (B) designed for Raspberry Pi Compute Module 5, Onboard EEPROM And Encryption Chip - CM5-IO-BASE-B
The CM5-IO-BASE-B is a base board designed for the Raspberry Pi Compute Module 5, offering a standard CM5 connector, M.2 M-key slot for SSD, DSI and CSI interfaces, and rich peripheral options—ideal for development and integration.
Specifications
CM5 socket |
suitable for all variants of Compute Module 5 |
---|---|
Networking |
Gigabit Ethernet RJ45 connector |
Connector |
M.2 M KEY (2230 / 2242) |
Raspberry Pi 40PIN GPIO header |
|
USB |
USB 3.2 Gen1 Type-A × 2, USB 2.0 × 2 (6PIN 1mm FFC connector) |
MIPI |
4-lane MIPI interface × 2 (22pin 0.5mm FFC connector) |
Video |
HDMI port × 2 (including one port via FFC connector), supports dual 4K outputs |
Storage |
TF card slot for Compute Module 5 Lite (without eMMC) variants |
Fan header |
5V, 4PIN JST-SH PWM connector |
Others |
Onboard EEPROM and Encryption chip |
Power input |
DC 5V 5A |
Dimensions |
85 × 56mm |
Compact, yet Complete
Onboard multiple connectors, more convenient to use.
What's On Board
- CM5 socket
suitable for all variants of Compute Module 5 - 40PIN GPIO header
for connecting various HAT / HAT+ modules - Power input/Programming
5V / 5A power supply, or used for eMMC burning - Encryption chip (ATSHA204)
Supports fast and secure symmetric authentication - PSW Power button
Long press to force power off, short press to soft power off or on - STAT LED
Dual-color status LED - BOOT button
Press before powering on and release after powering on to enter the burning mode - Dual MIPI interfaces
for connecting DSI displays and CSI cameras - HDMI0 connector
HDMI0 port, supports 4K output - USB 3.2 Gen1 ports
2x USB 3.2 Gen1 high-speed ports, supports 5Gbps synchronous operation - RJ45 Gigabit Ethernet port
Supports 10M / 100M / 1000M network access - 4PIN JST-SH PWM Fan header
for connecting cooling fan, 5V power supply - TF card slot
for connecting a TF card with pre-burnt image (Lite variant ONLY) - IO-VREF selection
CM5 IO logic level: 3.3V (default) or 1.8V - Other function pins
WIFI / BT hardware disable or write protection - HDMI1 FFC connector
HDMI1 port, supports 4K output, can be connected through an adapter - USB 2.0 FFC connector
can be connected through an adapter - RTC battery holder
Supports CR / ML1220 button cell - M.2 M KEY
Supports 2230/2242 NVMe Solid State Drives and booting Pi5 from solid state drive - I2C selection
switching I2C0 and I2C1 (by default) for the encryption chip and EEPROM - CAT24C32
EEPROM chip
Outline dimensions
WIKI: www.waveshare.com/wiki/CM5-IO-BASE-B
Package Content
- CM5-IO-BASE-B x1
- Screws pack x1
- SSD mounting screw x1