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Green rectangular development board with 40-pin GPIO header and multiple onboard connectors

LORDWORLD

LORDWORLD Mini Base Board B CM4 40PIN GPIO development board

SKU CH-7AFQ-1EKCG

Credit-card-sized carrier board for Raspberry Pi Compute Module 4 with 40-pin GPIO, HDMI, USB, Gigabit Ethernet, CSI, DSI, RTC, fan header, microSD and M.2 slots

  • Compact credit-card form factor fits tight enclosures
  • Standard CM4 socket accepts Lite and eMMC modules
  • Colour-coded 40-pin GPIO header simplifies wiring
  • On-board CSI, DSI, RTC, fan, HDMI, USB, Gigabit Ethernet, microSD and M.2 connectors
  • Ready for evaluation or direct integration into end products

Compact carrier for Compute Module 4 evaluation

The LORDWORLD Mini Base Board B fits a Raspberry Pi Compute Module 4 into a credit card sized footprint. A standard CM4 socket accepts both Lite and eMMC variants. A colour coded 40PIN GPIO header matches the Pi pinout for direct hardware access. The board targets engineers prototyping embedded Linux appliances or integrating CM4 into finished products.

Passive thermal design with fan header

No active cooler is mounted on the carrier itself. A dedicated fan connector allows an external blower to be added when the Compute Module 4 runs sustained workloads. Power draw follows the inserted module and attached peripherals. Acoustic output depends entirely on the optional fan chosen by the integrator.

Integrated I/O reduces external wiring

Onboard CSI and DSI connectors support camera and display modules directly. Gigabit Ethernet RJ45 provides wired networking without adapters. HDMI, USB, Micro SD and M.2 slots expose storage and peripheral interfaces. An RTC header preserves timekeeping across power cycles. Builders needing additional PCIe lanes or a second Ethernet port must look elsewhere.

How it compares

Measured against everything we stock in Single-Board Computers & Dev Kits, at today’s prices. Recalculated every night.

Price $84.99
Pricier than about 78% of the 1,420 comparable items (median $44.99).

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Specifications

Product
Brand nameLORDWORLD

Questions about this item

How do I install a Compute Module 4 onto the board without bending the connector?

Align the module with the standard CM4 socket, press down evenly until the latches click on both sides, then attach the 40PIN GPIO header if needed.

What ongoing maintenance does the onboard RTC and fan header require?

Replace the RTC coin cell when the clock drifts and clean dust from the fan header area periodically to maintain airflow.

Which thermal limit appears first when the CM4 runs sustained loads on this compact board?

The CM4 will hit its internal throttle point before the small PCB can dissipate the heat, so expect CPU frequency scaling under continuous heavy work.

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