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Waveshare Mini Base Board (B) for Raspberry Pi Compute Module 5 – Base Board Only
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The Waveshare Mini Base Board (B) for Raspberry Pi Compute Module 5, also known as the CM5-IO-BASE-B, is a compact and feature-rich expansion board designed to turn the Raspberry Pi Compute Module 5 into a versatile mini-computer. It supports all variants of the Raspberry Pi CM5 and provides a wide range of connectivity options, including two USB 3.2 Gen 1 ports, USB 2.0, Gigabit Ethernet, a 40-pin GPIO header, dual MIPI interfaces, and dual 4K display outputs.
The board also features an M.2 M-Key slot for 2230/2242 NVMe SSDs, a TF card slot for CM5 Lite variants, a PWM cooling fan header, RTC battery holder, and onboard EEPROM and ATSHA204 encryption chip. With its compact 85 × 56 mm form factor, this Raspberry Pi Compute Module 5 base board is well suited for embedded systems, edge computing, robotics, IoT applications, development projects, and custom Raspberry Pi-based computing solutions.
| Specification | Details |
|---|---|
| CM5 Socket | Suitable for all variants of Raspberry Pi Compute Module 5 |
| Networking | Gigabit Ethernet RJ45 connector |
| Storage Interface | M.2 M-Key slot, supports 2230 / 2242 SSDs |
| GPIO | Raspberry Pi 40-pin GPIO header |
| USB | 2 × USB 3.2 Gen 1 Type-A; 2 × USB 2.0 via 6-pin 1 mm FFC connector |
| MIPI | 2 × 4-lane MIPI interfaces via 22-pin 0.5 mm FFC connectors |
| Video Output | 2 × HDMI ports, including 1 via FFC connector; supports dual 4K output |
| Storage | TF card slot for Compute Module 5 Lite variants without eMMC |
| Fan Header | 5V, 4-pin JST-SH PWM connector |
| Others | Onboard EEPROM and encryption chip |
| Power Input | DC 5V / 5A |
| Dimensions | Base board: 85 × 56 mm |
| Dimensions with Metal Case | 90 × 68 mm |
This product comes with a 1-year manufacturer warranty from the date of purchase, covering manufacturing defects only.
The product shows signs of physical damage, mishandling, exposure to water/moisture, fire, natural calamities, unauthorized repairs, improper storage near heat or direct sunlight, or alteration in any way.
Fits in tight enclosures easily. Box included standoffs. Fast shipping. All CM5 signals broken out cleanly. Customer service verified PCIe lane count. Perfect for embedded compute modules.
EEPROM pre-flashed for CM5 boot. Packed in anti-static bag. Website had pinout PDF. Encryption chip accessible via I2C. Support confirmed secure boot flow. Essential carrier for CM5 projects.
LDOs provide clean rails to CM5. Secure packaging, components intact. Website had power tree diagram. No brownouts during stress tests. Customer service verified max current per rail. Ensures CM5 reliability.
Manual explained encryption chip usage clearly. Box included quick-start card. Live chat helped with CM5 variant selection. Support sent device tree overlay example. Reduces bring-up time dramatically.
All PCIe, USB, and MIPI available. Inner box had silica gel. Ordering process smooth. Headers labeled clearly. Tech support confirmed differential pair lengths. Ideal for custom CM5 expansions.
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It is Amazing and great item in this price
Veri usefull and cheap price from other shopping site, I use this module many project. Thank you robocraze
We have received all materials as in same brand.
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