2 pin JST-Xh Splicer (2x2 & 2x3) PCB by LDO motors

Voron and Klipper builders know that JST-XH connection failures are the #1 source of intermittent print errors — a loose thermistor or fan connector can trigger thermal runaway or silent failures mid-print. Unstable wiring connections in critical components like LEDs, fans, and thermistors can abruptly halt prints and cause hardware errors.

The 2 pin JST-XH Splicer PCB by LDO Motors is a compact, modular wiring hub designed specifically for FDM 3D printers such as Voron 2.4, Trident, and other Klipper-based CoreXY builds. Available in 2x2 and 2x3 configurations, this splicer consolidates multiple 2 pin JST-XH connectors into a single stable junction, improving cable management and reducing connection failures. It enables quick, solder-free swaps and troubleshooting of components like thermistors and case LEDs, making wiring harness upgrades and repairs faster and more reliable in high-performance printer ecosystems.

Why Upgrade?

• Eliminate intermittent wiring faults that cause print failures and hardware malfunctions in Voron 2.4 and Trident printers.
• Simplify complex wiring setups by consolidating multiple 2 pin JST-XH connections into one stable hub for CoreXY and Klipper ecosystems.
• Speed up maintenance and troubleshooting with solder-free, plug-and-play connections for thermistors and LEDs.
• Improve cable management for safer, more reliable printer electronics operation in high-speed FDM printers.

Best For:

• Voron 2.4 and Trident builders upgrading or repairing wiring harnesses without soldering.
• CoreXY printer users needing reliable, modular connection points for thermistors, fans, and LEDs.
• Klipper ecosystem users requiring stable JST-XH junctions to prevent thermal runaway errors.
• FDM printers requiring clean, organized wiring for bed thermistors and case lighting.

Pair With the Right Filament

Reliable wiring connections complement your filament choice by ensuring consistent printer operation and reducing downtime.

• PLA Filament — versatile and easy to print, perfect for prototyping electronics mounts.
• PETG Filament — durable and heat resistant, ideal for enclosures and cable management parts.
• TPU Flexible Filament — flexible and resilient, great for strain relief and cable protection.