--- product_id: 431136721 title: "Nano Base Board (B) for Raspberry Pi Compute Module 4, Same Size as CM4, with Standard CM4 Socket, Raspberry Pi 40PIN GPIO, Gigabit Ethernet, USB2.0, DSI, CSI, HDMI, 3.5mm Audio Jack etc." brand: "waveshare" price: "HK$363" currency: HKD in_stock: true reviews_count: 8 category: "Waveshare" url: https://www.desertcart.hk/products/431136721-nano-base-board-b-for-raspberry-pi-compute-module-4 store_origin: HK region: Hong Kong --- # Gigabit Ethernet for lightning-fast networking Standard 40PIN GPIO for versatile hardware integration Mini HDMI supports crisp 4K@30fps video output Nano Base Board (B) for Raspberry Pi Compute Module 4, Same Size as CM4, with Standard CM4 Socket, Raspberry Pi 40PIN GPIO, Gigabit Ethernet, USB2.0, DSI, CSI, HDMI, 3.5mm Audio Jack etc. **Brand:** waveshare **Price:** HK$363 **Availability:** ✅ In Stock ## Summary > 🚀 Nano Base Board (B): Big performance, tiny footprint—your CM4’s perfect sidekick! ## Quick Answers - **What is this?** Nano Base Board (B) for Raspberry Pi Compute Module 4, Same Size as CM4, with Standard CM4 Socket, Raspberry Pi 40PIN GPIO, Gigabit Ethernet, USB2.0, DSI, CSI, HDMI, 3.5mm Audio Jack etc. by waveshare - **How much does it cost?** HK$363 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/431136721-nano-base-board-b-for-raspberry-pi-compute-module-4) ## Best For - waveshare enthusiasts ## Why This Product - Trusted waveshare brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Developer-Ready:** Comes with color-coded 2x20 pin headers and full dev resources to accelerate your project launch. - • **Compact Powerhouse:** Same size as the Raspberry Pi CM4, perfect for tight spaces and sleek builds. - • **Expandable Storage:** Micro SD card slot for CM4 Lite variants—flexible storage options without compromise. - • **Seamless Connectivity:** Gigabit Ethernet, USB 2.0, MIPI DSI & CSI ports, plus 3.5mm audio jack for full peripheral support. - • **Plug & Play Versatility:** Standard CM4 socket compatible with all CM4 variants—no compatibility guesswork. ## Overview The Nano Base Board (B) by Waveshare is a compact, CM4-sized carrier board designed for Raspberry Pi Compute Module 4 variants. It features a standard CM4 socket, Gigabit Ethernet, USB 2.0, 40PIN GPIO, MIPI DSI/CSI ports, mini HDMI supporting 4K@30fps, and a 3.5mm audio jack. Ideal for developers and integrators, it supports micro SD storage for CM4 Lite models and includes color-coded pin headers and development resources, making it a versatile, space-saving solution for embedded projects and prototyping. ## Description Nano Base Board (B) For Raspberry Pi Compute Module 4, Same Size As The CM4 1.Nano Base Board (B) For CM4 Suitable For Evaluating The Raspberry Pi CM4 Or Being Integrated Into End Products Base Board for Compute Module 4 Lite/eMMC 2.Compact, Yet Complete Standard CM4 Socket, 40PIN GPIO, Gigabit Ethernet, USB2.0, DSI, CSI, 3.5mm Audio Jack... All In The Compact Body Just As The Size Of CM4 Specifications CM4 SOCKET---suitable for all variants of Compute Module 4 NETWORKING---Gigabit Ethernet RJ45 connector CONNECTOR---Raspberry Pi 40PIN GPIO header × 1 USB---USB 2.0 Type A connector × 1 DISPLAY---MIPI DSI port × 1 (15pin 1.0mm FPC connector) CAMERA---MIPI CSI-2 port × 1 (15pin 1.0mm FPC connector) VIDEO---Mini HDMI port × 1, supports 4K 30fps output AUDIO---3.5mm jack STORAGE---Micro SD card socket for Compute Module 4 Lite (without eMMC) variants POWER INPUT---5V DIMENSIONS---56 × 41mm Package Content CM4-NANO-B x1 2*20PIN color-coded straight pinheader x1 Note 1.Development Resources is provided , please contact us if you have any problem . 2.the Compute Module 4 in the photo is NOT included. Review: GPIO ports and EThernet - The carrier board worked great. I liked the placement of the ethernet port and GPIO ports. I would buy this again since it has a very small footprint. Review: NICE AND COMPACT - Bought this to flash an OS to a CM4 with storage on it, for my Cyberdeck. one thing I would recommend buying is a nylon stand-off and screw kit, since there's a bit of play and wobble with this, when a CM4 is connected. Putting a screw with head facing the back of a CM4, with a Nut Spacer where needed, helps eliminate that wobble and increases its rigidity. Also, if you want to get fancy, then you can even fashion an acrylic top and bottom for this. just for added protection. Which I think I will do. As for function, this worked as advertised and was easy to use to flash Rasbian to my CM4 and then slap that in my Cyberdeck from Clockwork Pi. This is not only a lesser expensive option from the official Raspberry offering, but also doesn't require weird jumper combos and whatnot. ## Features - [Nano Base Board (B) For Raspberry Pi Compute Module 4] Suitable For Evaluating The Raspberry Pi CM4 Or Being Integrated Into End Products - [Same Size As The CM4]Standard CM4 Socket,Suitable For Narrow Application Environment - [Multiple Peripheral Interfaces]Standard CM4 Socket, 40PIN GPIO, Gigabit Ethernet, USB2.0, DSI, CSI, 3.5mm Audio Jack… - [STORAGE]Micro SD card socket for Compute Module 4 Lite (without eMMC) variants - [Note]The CM4 is NOT included. Please buy it separately if necessary. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09VX96DV6 | | Best Sellers Rank | #596 in Single Board Computers (Computers & Accessories) | | Brand | waveshare | | Built-In Media | 2*20PIN color-coded straight pinheader | | CPU Manufacturer | Broadcom | | Compatible Devices | Raspberry Pi Compute Module 4 | | Connectivity Technology | Ethernet, GPIO, HDMI, USB | | Customer Reviews | 4.7 out of 5 stars 26 Reviews | | Included Components | 2*20PIN color-coded straight pinheader | | Item Weight | 0.02 Kilograms | | Manufacturer | Waveshare | | Mfr Part Number | Nano Base Board (B) | | Model Name | RB-Wav-500 | | Model Number | Nano Base Board (B) | | Operating System | Linux | | Processor Brand | Broadcom | | RAM Memory Technology | SDRAM | | Smart Home Compatibility | Not Smart Home Compatible | | UPC | 755291678888 717186097532 | | Wireless Compability | 802.11b | ## Product Details - **Brand:** waveshare - **Model Name:** RB-Wav-500 - **Connectivity Technology:** USB, Ethernet, HDMI, GPIO - **Operating System:** Linux - **Wireless Communication Standard:** 802.11b ## Images ![Nano Base Board (B) for Raspberry Pi Compute Module 4, Same Size as CM4, with Standard CM4 Socket, Raspberry Pi 40PIN GPIO, Gigabit Ethernet, USB2.0, DSI, CSI, HDMI, 3.5mm Audio Jack etc. - Image 1](https://m.media-amazon.com/images/I/71mORcmZxmL.jpg) ## Questions & Answers **Q: I'm using a cm4 lite, switch on state to boot from sd. when i supply power through usb-c it does not turn on. whats is going on?** A: Hi Dear, the BOOT switch needs to be set to “OFF ” to powered on. (1) ON: Switch USB to Type C interface, will enter download mode when powered on (configured as a large-capacity disk through RPI boot) (2) OFF: Switch USB to Type A interface, will not enter download mode when powered on (booted from eMMC or Micro SD card). Providing 5V 2A for CM4 to ensure that it is in normal use. Otherwise, there may be problems such as automatic shutdown, frequency reduction and so on. ## Customer Reviews ### ⭐⭐⭐⭐⭐ GPIO ports and EThernet *by S***C on February 20, 2026* The carrier board worked great. I liked the placement of the ethernet port and GPIO ports. I would buy this again since it has a very small footprint. ### ⭐⭐⭐⭐ NICE AND COMPACT *by A***R on March 27, 2025* Bought this to flash an OS to a CM4 with storage on it, for my Cyberdeck. one thing I would recommend buying is a nylon stand-off and screw kit, since there's a bit of play and wobble with this, when a CM4 is connected. Putting a screw with head facing the back of a CM4, with a Nut Spacer where needed, helps eliminate that wobble and increases its rigidity. Also, if you want to get fancy, then you can even fashion an acrylic top and bottom for this. just for added protection. Which I think I will do. As for function, this worked as advertised and was easy to use to flash Rasbian to my CM4 and then slap that in my Cyberdeck from Clockwork Pi. This is not only a lesser expensive option from the official Raspberry offering, but also doesn't require weird jumper combos and whatnot. ### ⭐⭐⭐⭐⭐ Everything you need *by T***K on October 31, 2024* Just make sure you enable the USB2.0 per the CM4 guide otherwise the USB port will not work, USB is disabled on the CM4 by default. ## Frequently Bought Together - Nano Base Board (B) for Raspberry Pi Compute Module 4, Same Size as CM4, with Standard CM4 Socket, Raspberry Pi 40PIN GPIO, Gigabit Ethernet, USB2.0, DSI, CSI, HDMI, 3.5mm Audio Jack etc. - Waveshare Compute Module 4 The Power of Raspberry Pi 4 in A Compact Form Factor 8GB RAM 32GB eMMC Flash with WiFi - Waveshare Mini Dual Gigabit Ethernet Base Board Compatible with Raspberry Pi Compute Module 4 Suitable for All Variants of Compute Module 4, Only Including CM4-DUAL-ETH-MINI Baseboard --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hk/products/431136721-nano-base-board-b-for-raspberry-pi-compute-module-4](https://www.desertcart.hk/products/431136721-nano-base-board-b-for-raspberry-pi-compute-module-4) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-08-09*