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Black 24-pin PSU jumper with 12x2 pins for pump testing

Bitspower

Bitspower PSU 24-Pin Active Jumper Black 12x2 Pin

SKU CH-72AE-P9V2K

24-pin ATX jumper powers the PSU without a motherboard for safer leak testing

  • Product typeAccessories
  • Power PSU without motherboard using 24-pin active jumper
  • Run pump independently for safer leak testing of loop
  • Simple 12x2 pin design enables quick water-cooling setup
  • RoHS compliant materials meet environmental safety standards
  • Black finish matches dark-themed internal cable aesthetics

Bitspower PSU 24-Pin Active Jumper

The Bitspower PSU 24-Pin Active Jumper is a compact accessory designed to power on a power supply unit without connecting it to a motherboard. It features a 12x2 pin ATX connector in a black finish. This tool is intended for system builders and liquid-cooling enthusiasts who need to run pumps or fans independently during assembly or maintenance. It simplifies the process of verifying component operation outside a standard boot cycle.

Replaces Manual PSU Jumping Methods

This jumper replaces the traditional paperclip or wire method used to short the PSU-on pins on a 24-pin connector. It provides a dedicated, insulated tool that plugs directly into the ATX header for a secure connection. The jump is worth it when performing leak testing on a custom water-cooling loop, as it keeps the system powered without requiring a full motherboard installation. It reduces the risk of accidental shorts or bent pins during repeated test cycles.

Capacity And Headroom For Leak Testing

The device handles the PSU control signal to activate the unit and deliver power to connected components such as pumps and fans. It runs out of utility once the system moves to final assembly and the motherboard takes over PSU control via the standard 24-pin connection. It is not a power supply itself and does not regulate voltage or current to the components. Buyers who need to power multiple independent PSUs simultaneously or require voltage monitoring features will need separate equipment.

How it compares

Measured against everything we stock in Internal PSU & Riser Cables, at today’s prices. Recalculated every night.

Price $1.99
Cheaper than about 98% of the 7,839 comparable items (median $14.99).

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Specifications

Product
Product typeAccessories

Questions about this item

Does the 24-pin ATX connector with 12x2 pin layout fit my power supply directly?

The 24-pin connector uses a standard 12x2 pin arrangement that plugs straight into any ATX power supply's 24-pin socket.

How do I install the jumper to run the pump without the motherboard, and what is the common mistake?

Bridge the green and any black wire on the 24-pin plug to signal the PSU to start; the mistake is leaving the jumper loose so the PSU cycles off during a leak test.

Will the black plastic housing or pins degrade after repeated leak-test cycles?

The RoHS-compliant materials resist heat and oxidation, so the jumper remains reliable through many fill-and-drain sessions.

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