Nano Base Board (B) for Raspberry Pi Compute Module 4
Everything your Compute Module 4 needs – Ethernet, HDMI, camera and display – on a board no bigger than the module itself.
Available with a lead time
Expect dispatch between Oct 21 and Oct 28
A complete carrier board that's barely bigger than the Compute Module it hosts. At just 56 × 41 mm, it sits directly under a Raspberry Pi CM4 and breaks out Gigabit Ethernet, 4K HDMI, USB, camera, display, audio and the full 40-pin GPIO header – no oversized IO board required.
The official CM4 IO Board is perfect on the bench, but it's far too big to drop into a finished product. This board closes that gap: evaluate your CM4 with the interfaces you actually need, then build the same compact board into your enclosure, robot or kiosk.
It suits every Compute Module 4 variant. Lite (no eMMC) modules boot from the onboard microSD slot, while eMMC modules can be flashed over USB-C – just flip the BOOT switch and use rpiboot to mount the eMMC as a USB mass-storage drive.
Getting started is simple:
- Seat your CM4 in the board-to-board socket
- Insert a flashed microSD card (Lite) or flash the eMMC over USB-C with BOOT set to ON
- Set BOOT to OFF and power up with a 5V USB-C supply
Features
- Keeps your build tiny – the board matches the footprint of the CM4, so the whole system is only slightly larger than the module
- Fast, reliable wired networking through a Gigabit Ethernet RJ45 port
- Drive a monitor at up to 4K 30fps via the Mini HDMI port
- Add vision and a local screen with MIPI CSI-2 camera and MIPI DSI display connectors (15-pin, 1.0 mm FPC)
- Works with the huge range of Raspberry Pi HATs through the standard 40-pin GPIO header
- Plug in keyboards, storage or dongles via the USB 2.0 Type-A port
- Hear system audio through the 3.5 mm audio jack
- Flash eMMC modules without extra hardware – the BOOT switch routes USB to the USB-C port for rpiboot programming
- Onboard user button for your own interface or shutdown controls
Specifications
| Property | Specification |
|---|---|
| Compatible modules | All Raspberry Pi Compute Module 4 variants (Lite/eMMC, wireless/non-wireless) |
| Networking | Gigabit Ethernet, RJ45 |
| GPIO | Raspberry Pi 40-pin GPIO header × 1 |
| USB | USB 2.0 Type-A × 1 |
| Video output | Mini HDMI × 1, up to 4K 30fps |
| Display | MIPI DSI × 1 (15-pin, 1.0 mm FPC) |
| Camera | MIPI CSI-2 × 1 (15-pin, 1.0 mm FPC) |
| Audio | 3.5 mm jack |
| Storage | microSD card slot (for CM4 Lite variants) |
| Power input | 5V via USB-C (also used for eMMC flashing) |
| Controls | BOOT switch, user button |
| Dimensions | 56 × 41 mm |
| Weight | 19 g |
Note: the Compute Module 4 and power supply are not included.
Resources
- Waveshare CM4-NANO-B Wiki – schematics, dimensions and setup guides
What's Included
- 1x Nano Base Board (B) for CM4
- 1x 2x20-pin colour-coded straight pin header
This product is listed in:
Raspberry PiRaspberry Pi>Boards
Raspberry Pi>Boards>Compute Module 4
Raspberry Pi>Boards>Compute Module 4>Carrier Boards
Exact shipping can be calculated on the view cart page (no login required).
Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).
We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):
- $3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
- $7+ for Standard Post (typically 6+ business days, tracked)
- $11+ for Express Post (typically 2+ business days, tracked)
- Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.
Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.
Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.
International Orders - the following rates are for New Zealand and will vary for other countries:
- $12+ for Pack and Track (3+ days, tracked)
- $16+ for Express International (2-5 days, tracked)
If you order lots of gear, the postage amount will increase based on the weight of your order.
Our physical address (here's a PDF which includes other key business details):
40 Aruma Place
Cardiff
NSW, 2285
Australia
Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.
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