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Waveshare Raspberry Pi Compute Module 4: Everything Beginners Must Know

Finding the right compact computer for a custom hardware build or electronics experiment can be challenging if you are new to the maker world. Many newcomers run into the limitation of bulky…

By Jasmine Norris 7 min read

Our verdict

Our score 9.4 /10

Scores are out of 10, based on listed specifications and buyer feedback — not from testing of our own

The Waveshare Compute Module 4 is an impressive, highly compact computing engine featuring an upgraded quad-core 64-bit ARM processor, top-tier memory capacity, and reliable built-in flash storage. However, because it lacks standard input and output jacks on the board itself, it functions exclusively when connected to a baseboard system, making it an exceptional component for bespoke engineering projects rather than an out-of-the-box home PC.

  • Packs a powerful 1.5 GHz quad-core ARM processor into a lightweight 0.1 kg footprint.
  • Combines 8 GB of LPDDR4 memory with integrated 32 GB eMMC flash storage for rapid data tasks.
  • Includes certified onboard Wi-Fi radio frequency wireless networking with external antenna support.
  • Requires a separate carrier board to access display, USB, power, and peripheral connections.

Where to buy

at Amazon Prime

View deal

Price taken from the listing on 18 Sep 2026 and it can change at any time. We may earn a commission if you buy through this link.

Pros

  • Powerful 1.5 GHz quad-core 64-bit ARM processor
  • Generous 8GB LPDDR4 operational memory
  • Fast 32GB onboard eMMC flash storage
  • Certified Wi-Fi with external antenna support
  • Extremely compact, lightweight 0.1 kg design

Cons

  • Requires separate carrier board to function
  • Lacks standard built-in HDMI and USB ports
  • Flashing onboard eMMC requires setup steps
  • Power supply and accessories not included

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Finding the right compact computer for a custom hardware build or electronics experiment can be challenging if you are new to the maker world. Many newcomers run into the limitation of bulky standard desktop single-board computers when trying to embed computing power inside custom enclosures, robots, or internet-of-things devices. The Waveshare Compute Module 4 solves this exact packaging issue by taking the core engine of a modern microcomputer and shrinking it down onto a tiny circuit board stripped of bulky legacy ports.

Our short verdict is straightforward: while this device packs tremendous processing power and ample onboard storage into an ultra-compact package, it is strictly designed for hardware enthusiasts, system integrators, and builders who know that a carrier board is mandatory to supply power, video, and peripheral ports. For absolute beginners looking for a simple plug-and-play desktop straight out of the box, standard desktop microcomputers remain simpler, but for custom embedded design, this tiny module offers immense flexibility.

Waveshare Compute Module 4 Features Explained

Upgraded Quad-Core BCM2711 Processor Engine

At the center of the hardware sits the Broadcom BCM2711 processor, which brings quad-core Cortex-A72 64-bit performance running at a clock speed of 1.5 GHz. This processing architecture provides a massive performance boost over previous generations of compute hardware, allowing the board to tackle complex mathematical computations, multimedia handling, and intensive multitasking with ease. Whether you are building an industrial controller, an automated sensor monitor, or an edge computing station, this upgraded silicon handles concurrent workloads without stalling.

Unlike basic microcontrollers that can only execute one narrow program loop at a time, this 64-bit system-on-chip runs complete operating systems. It allows developers to compile code directly on the target hardware and deploy modern containerized applications. When planning a robotics project or an automated smart hub alongside accessories like the raspberry pi camera module v2, having true 64-bit quad-core capability ensures that video processing pipelines and sensor feedback loops stay snappy and responsive.

Massive 8GB LPDDR4 System Memory

System memory dictates how smoothly a microcomputer can juggle multiple services, background daemons, and data buffers. This particular configuration ships with 8 GB of high-speed LPDDR4 RAM, which represents the maximum memory allocation available in this product line. Having this much operational memory is a critical benefit for projects that involve compiling large codebases locally, running in-memory databases, or hosting multiple software containers simultaneously without running out of operational headroom.

For users who need heavy data throughput, this high memory density prevents system slowdowns caused by excessive virtual memory swapping. While smaller configurations exist across the product family, opting for the full 8 GB ceiling future-proofs embedded hardware against increasing operating system requirements and memory-hungry user applications over extended deployments.

High-Speed 32GB Integrated eMMC Flash Storage

Storage reliability is often the weakest link in embedded electronics, especially when relying on traditional consumer memory cards. This device includes 32 GB of onboard eMMC flash storage soldered directly to the circuit board. By achieving data transfer rates of up to 100 megabytes per second, this storage interface operates four times faster than the older CM3+ generation, providing rapid operating system boot times, accelerated program launches, and significantly faster write cycles.

Beyond pure speed, integrated eMMC flash delivers vastly superior data integrity compared to removable cards that can vibrate loose or corrupt during sudden power loss. For permanent installations, IoT appliances, and smart display kiosks, having the operating system reside on dedicated onboard flash guarantees consistent long-term endurance and predictable read-write performance across thousands of operational hours.

Certified Radio Module with Flexible Wi-Fi Networking

Networking capabilities are vital for modern embedded computing, and this model integrates a fully certified radio module supporting Wi-Fi wireless communications. Derived from the same radio frequency design utilized on standard consumer microcomputers, this onboard wireless networking component ensures effortless communication with local wireless networks, cloud APIs, and remote telemetry dashboards right out of the gate.

The onboard RF system is engineered to support both a PCB trace antenna and an external antenna hookup. This dual capability makes the board particularly suitable for industrial enclosures or metal chassis where internal radio frequency signals might otherwise be shielded. By giving system designers the option to route an external antenna outside an equipment box, the module ensures robust wireless signal strength even in harsh installation environments.

Specs

Brand Waveshare
Model Number CM4108032
Model Name CM4108032 Package A
Processor Type Broadcom BCM2711 Quad-Core Cortex-A72 (ARM v8) 64-bit
Processor Speed 1.5 GHz
Installed RAM 8 GB LPDDR4
Onboard Storage 32 GB eMMC Flash (up to 100 MB/s)
Wireless Connectivity Wi-Fi (Radio Frequency)
Item Weight 0.1 kg
Compatible Peripherals Computers, monitors, keyboards, and other peripherals (via carrier)

As published by the manufacturer on the Amazon listing.

Buy it if

Best Use Cases

  • Custom robotics controllers where physical space is too tight for full-sized desktop development boards.
  • Industrial monitoring appliances requiring resilient, soldered-down 32 GB eMMC storage rather than standard memory cards.
  • Smart display systems and digital signage units embedded inside slim custom sheet metal enclosures.
  • Dedicated edge-computing gateways gathering sensor telemetry and streaming data over Wi-Fi networks.
  • Network-attached appliances created with customized baseboards tailored specifically to industrial input-output needs.

Think twice if

Before You Buy

The single most important concept every first-time buyer must understand before purchasing is that this board cannot operate on its own. Unlike standard microcomputers such as the raspberry pi 4 4gb ram which come equipped with integrated USB, Ethernet, HDMI, and power ports, this compute module uses dual high-density mezzanine connectors on its underside. To supply electrical power, attach display cables, plug in a keyboard, or insert networking wires, you must mount this board onto a compatible carrier board base. Buyers who plan to build an everyday desktop workstation or need an all-in-one educational platform will find mainstream options like the raspberry pi 5 8gb ram far more practical right out of the box.

Prospective purchasers must also evaluate their comfort level with low-level software deployment. Because this module features integrated eMMC flash rather than an open memory card slot, flashing the initial operating system image requires connecting the carrier board to a secondary computer via USB and utilizing specialized software utilities. Furthermore, the listing includes only the single bare computing module (Model CM4108032 Package A), meaning power adapters, baseboards, antennas, cooling heatsinks, and connecting cables are not included and must be sourced separately.

Bottom Line

The Waveshare Compute Module 4 delivers exceptional processing power, generous memory, and robust soldered flash storage within an ultra-streamlined physical footprint. It represents an engineering-first solution built specifically for embedded equipment creators, commercial prototyping, and advanced electronics hobbyists designing tailored hardware around a compact computing core.

If you need an ultra-compact, vibration-resistant brain for a customized hardware build and already have or plan to acquire a compatible baseboard, this unit represents an outstanding technical foundation. However, if your goal is simply to learn coding, build a standard retro gaming rig, or set up a straightforward home micro-desktop, a conventional single-board computer with built-in jacks remains the smarter, simpler path.

FAQ

Can I plug an HDMI cable directly into this compute module?

No, the bare module does not contain any full-sized or micro HDMI jacks. All video signals, USB connections, and power inputs pass through high-density connectors on the underside of the module, requiring a compatible baseboard to expose physical ports.

Does this model come with an operating system pre-installed?

The listing does not specify any pre-installed operating system on the onboard flash. Users typically mount the module onto an IO board and flash their preferred compatible Linux distribution onto the internal 32 GB eMMC storage using a host computer.

Can I use an external antenna with this module?

Yes, the certified radio module supports either the onboard PCB trace antenna or an external antenna connector, which is particularly beneficial when housing the board inside shielded industrial equipment.

How is this module powered without a USB-C power port?

The module receives all electrical current directly through its mezzanine interface connectors from the underlying carrier board, which handles power regulation and distribution.

What does the Package A designation mean on this listing?

The manufacturer designates model number CM4108032 Package A as the standalone computing module containing 8 GB of LPDDR4 memory, 32 GB of onboard eMMC flash, and integrated Wi-Fi networking.

Where to buy

at Amazon Prime

View deal

Price taken from the listing on 18 Sep 2026 and it can change at any time. We may earn a commission if you buy through this link.