Raspberry Pi CM4 and CM4Lite Modules Launched for $25 and Up

We were expecting Raspberry Pi Compute Module 4 sometimes next year, but Raspberry Pi Trading Limited managed to launch the new module much earlier, as Raspberry Pi CM4 and CM4Lite modules have just been launched with a new, much more compact form factor incompatible with the earlier Compute Modules, an I/O board making use of the new features, and a choice of 32 models with variations in terms of memory and storage capacity, as well as the presence or lack thereof of a WiFi and Bluetooth wireless module.

Raspberry Pi CM4 & CM4Lite

Raspberry Pi CM4

Specifications:

  • SoC – Broadcom BCM2711 quad-core Cortex-A72 processor @ 1.5 GHz with VideoCore VI GPU
  • System Memory – 1, 2, 4, or 8GB LPDDR4-3200 SDRAM
  • Storage – CM4: 4, 8, 16, or 32GB eMMC flash up to 100MB/s; CM4Lite: No storage device on module
  • Networking
    • Gigabit Ethernet transceiver
    • Optional Wireless module with 802.11b/g/n/ac WiFi 5 and Bluetooth 5.0; external or PCB antenna (selectable by on-board electronic switch)
  • 2x 100-pin high-density board-to-board connectors with:
    • Storage – CM4Lite only: SDIO 2.0 for SD card on carrier board
    • Video Output
      • 2x HDMI 2.0 ports
      • 1 x 2-lane MIPI DSI camera port
      • 1 x 4-lane MIPI DSI camera port
    • Camera I/F
      • 1x 2-lane MIPI CSI camera port
      • 1x 4-lane MIPI CSI camera port
    • Ethernet – Gigabit Ethernet
    • USB – 1x USB 2.0 host
    • PCIe – 1x PCIe 1-lane Host, Gen 2 (5Gbps)
    • 28x user GPIO (3.3v or 1.8v) also configurable as 6x UART, 6x I2C, 5x SPI, SDIO, 1x DPI (Parallel RGB Display), 1x PCM, 2x PWM, 3x GPCLK outputs
  • Supply Voltage – 5V
  • Dimensions – 55 x 40 x 4.7mm with 4x M2.5 mounting holes
Raspberry Pi CM4Lite without storage – Click for high-resolution photo

The Raspberry Pi Computer Module 4 also comes with an optional I/O board and an antenna (kit).

The I/O board comes with two high-density connectors for RPi CM4 module, dual HDMI ports, Gigabit Ethernet, two display and two camera connectors, a PCIe slot, a MicroSD card socket, a 40-pin HAT connector, as well as RTC + battery holder, and fan connector.

There’s also a PoE header, a USB header with two USB 2.0 interfaces, a micro USB port for firmware updates, some configuration jumpers (for wireless, EEPROM writing…),  and a 12V DC jack.

Raspberry Pi Compute Module 4 Pricing

As mentioned in the introduction, there are plenty of variants for Raspberry Pi CM4/CM4Lite module with price ranging from $25 to $90 as shown in the table below.

WirelessRAM (LPDDR4)Storage (eMMC flash)RPTL #Part NumberOrder MultiplePrice (RRP)
-1GBLiteSC0318CM40010001+ / Bulk$25
-1GB8GBSC0319CM40010081+ / Bulk$30
-1GB16GBSC0320CM40010161+ / Bulk$35
-1GB32GBSC0321CM40010321+ / Bulk$40
Yes1GBLiteSC0314CM4101000Bulk$30
Yes1GB8GBSC0315CM4101008Bulk$35
Yes1GB16GBSC0316CM4101016Bulk$40
Yes1GB32GBSC0317CM4101032Bulk$45
-2GBLiteSC0287CM40020001+ / Bulk$30
-2GB8GBSC0288CM40020081+ / Bulk$35
-2GB16GBSC0289CM40020161+ / Bulk$40
-2GB32GBSC0290CM40020321+ / Bulk$45
Yes2GBLiteSC0275CM41020001+ / Bulk$35
Yes2GB8GBSC0276CM41020081+ / Bulk$40
Yes2GB16GBSC0277CM41020161+ / Bulk$45
Yes2GB32GBSC0278CM41020321+ / Bulk$50
-4GBLiteSC0291CM4004000Bulk$45
-4GB8GBSC0292CM4004008Bulk$50
-4GB16GBSC0293CM4004016Bulk$55
-4GB32GBSC0294CM4004032Bulk$60
Yes4GBLiteSC0279CM41040001+ / Bulk$50
Yes4GB8GBSC0280CM41040081+ / Bulk$55
Yes4GB16GBSC0281CM41040161+ / Bulk$60
Yes4GB32GBSC0282CM41040321+ / Bulk$65
-8GBLiteSC0295CM4008000Bulk$70
-8GB8GBSC0296CM4008008Bulk$75
-8GB16GBSC0297CM4008016Bulk$80
-8GB32GBSC0298CM4008032Bulk$85
Yes8GBLiteSC0283CM41080001+ / Bulk$75
Yes8GB8GBSC0284CM41080081+ / Bulk$80
Yes8GB16GBSC0285CM41080161+ / Bulk$85
Yes8GB32GBSC0286CM41080321+ / Bulk$90

RPTL standards for “Raspberry Pi Trading Limited” and I suppose it’s some kind of ordering code. We can see from the table some of the modules will only be available in bulk with a minimum order quantity, mostly RPI CM4 systems-on-module without wireless module. Raspberry Pi guarantees the availability of the CM4 until at least January 2028. The IO board will sell for $35, and the antenna for $5.

You’ll find the module for purchase on distributors like RS Components, Cytron, Element14, Seeed Studio, and many others.

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