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Black rectangular ABS circuit board approximately 100 by 24 by 17 millimetres with soldered components and connectors visible

YINGHUA

YINGHUA Klipper Expander Board V2.4 Thermistor Input 3D Printer Accessory

SKU CH-ACZN-8XGPG

Expands a 2.4 printer with four fan ports, two temperature inputs and an RGB connector on a black ABS board measuring 100 by 24 by 17 mm

  • Expands printer control with four fan ports
  • Adds two temperature ports for multi-zone monitoring
  • Includes one RGB port for lighting integration
  • Compact ABS board measures 100 by 24 by 17 mm
  • Designed specifically for 2.4 series 3D printers

Klipper Expander Board for 2.4 printers

This expansion board is designed for owners of 2.4 series printers who run Klipper firmware and need additional I/O. It adds four fan ports, two thermistor inputs and one RGB connector to the existing control electronics. The board targets enthusiasts and professionals who want finer thermal management and lighting control without replacing the main controller.

Four fan ports and dual thermistor inputs

The board provides four fan headers and two temperature ports, giving enough headroom for hot-end, part-cooling and enclosure fans plus bed and chamber sensors. A single RGB port handles addressable lighting strips. Builders who require more than two temperature channels or additional fan outputs will need a different solution, as this board does not expand beyond the listed ports.

ABS construction in a compact form factor

The black ABS board measures approximately 100 by 24 by 17 millimetres (3.93 by 0.94 by 0.67 inches), fitting inside tight printer electronics compartments. Passive cooling is provided by the board material itself; no active fan or heatsink is included. Power draw is limited to the connected fans and RGB devices, so the main power supply must cover those loads.

Highlights

  • Expands printer control with four fan ports
  • Adds two temperature ports for multi-zone monitoring
  • Includes one RGB port for lighting integration
  • Compact ABS board measures 100 by 24 by 17 mm
  • Designed specifically for 2.4 series 3D printers

Specifications

No published specifications for this item yet.

Questions about this item

Will the V2.4 Klipper Expander Board connect to the existing fan and temperature headers on my 2.4 printer?

The board provides four fan ports and two temperature ports that match the 2.4 printer layout, so the original headers plug straight in.

How can I confirm the board is communicating with Klipper after installation?

Flash the Klipper firmware, then check the web interface for the new fan and temperature sensors reporting live readings.

Does the package include mounting screws or cables, or just the bare board?

Only the expansion board itself is included; mounting hardware and any extra cables must be sourced separately.

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