# Mini Base Board (B) for CM5 - Onboard EEPROM and Encryption Chip

**Type:** Product page · **SKU:** WS-30703 · **Brand:** [Waveshare](https://core-electronics.com.au/brands/waveshare-in-australia)
**Page:** https://core-electronics.com.au/mini-base-board-b-raspberry-pi-compute-module-5-eeprom-encryption.html ([markdown](https://core-electronics.com.au/mini-base-board-b-raspberry-pi-compute-module-5-eeprom-encryption.html.md))

Mini Base Board (B) designed for Raspberry Pi Compute Module 5, Onboard EEPROM And Encryption Chip...

## Pricing

- **Price:** $40.15 (inc GST) — $36.50 AUD, exc GST
- **Quantity discounts:** 10+ $35.04 (exc GST) · 25+ $33.95 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 2 today, and up to 300 more in 12–19 days.

## Restrictions

Restrictions apply to this equipment as it uses button/coin cell batteries:

- The equipment is intended to be used in trades, professions or industries
- The equipment is not intended for sale to the general public
- The equipment is not intended to be used where children are present
- You are aware that this equipment may not meet child safety testing requirements as it is not intended to be used by consumers or general public, but rather, is intended to be used in trades, professions or industries in conjunction with the limitations and restrictions listed above
- You are aware that these restrictions are due to a change in [A](https://www.accc.gov.au/media-release/businesses-on-notice-as-mandatory-button-battery-laws-commence)[ustralian legislation in 2022](https://www.accc.gov.au/media-release/businesses-on-notice-as-mandatory-button-battery-laws-commence) for button/coin cell batteries
 
![Button Battery Warning](https://core-electronics.com.au/attachments/uploads/iec-button-battery.png)

A declaration of use will need to be submitted during checkout.

## Description

The Mini Base Board (B) for the Raspberry Pi Compute Module 5 provides a robust foundation for building versatile mini-computers. With onboard EEPROM and encryption capabilities, it supports many use cases.

### Technical Specifications

- CM5 Socket: Compatible with all variants of Compute Module 5
- Networking: Gigabit Ethernet RJ45
- USB Ports: USB 3.2 Gen1 × 2, USB 2.0 with 6Pin FFC connector × 2
- MIPI Interface: 4-lane MIPI × 2
- HDMI Port: Dual 4K outputs via HDMI
- EEPROM/Encryption: Onboard chip for personalised security
- Dimensions: 85 × 56mm (board); 90 × 68mm (with case)
 
### How to Use/Installation

- Attach the Raspberry Pi Compute Module 5 into the CM5 socket firmly.
- Connect peripherals using the provided GPIO, Ethernet, and USB interfaces.
 
### Compatibility

- Compute Module 5 Lite/eMMC
- Standard Raspberry Pi HATs
- NVMe SSDs supported via M.2 M KEY
- Networking using Ethernet
- Various USB and HDMI devices
 
### Additional Resources

- Waveshare Wiki for CM5-IO-Base-B
 
### What’s Included

- CM5-IO-BASE-B
- Screw Pack

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/W/S/WS-30703-1.jpg)