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Two black 24-pin ATX extension cables, 32 cm each, male to female connectors

Longdex ATXECMP-2 24-pin ATX power extension cord 32 cm 2-pack

SKU CH-3DVN-27QMX

Two 32 cm 24-pin ATX male-to-female extensions with 18 AWG tinned-copper wire, cable tie and locking latch

  • FeaturesThis power extension cord is made by Longdex and features a
  • Extends ATX power reach by 32 cm for easier routing
  • 18 AWG tinned-copper conductors rated 80 °C ensure reliable power delivery
  • Male 5557 24-pin (20+4) to female 5559 24-pin connectors fit standard PSU and motherboard
  • Latch and clamp prevent accidental disconnection under vibration
  • Removable cable tie included for tidy cable management

Extension for 24-pin ATX power

This Longdex cord adds 32 cm to the standard ATX 24-pin connection between a power supply and a motherboard. Each pack contains two black cables built with 18 AWG tinned-copper conductors and PVC insulation rated to 80 °C. The male end uses a 5557 20+4 pin housing while the female end uses a 5559 24-pin housing, so the link stays fully keyed and polarised. A reusable cable tie and a latch-equipped clamp ship with every cord for tidy routing and secure seating.

Suits cramped or custom chassis.

Builders working in compact cases, rear-routing channels or custom loop layouts gain the slack needed to reach the motherboard socket without stretching the PSU lead. The extension also eases strain on the primary connector when heavy cables pull downward. It does not replace a dedicated EPS 12 V or PCIe power run, so systems that need extra CPU or GPU feeds must still route those cables directly from the supply.

Fits standard ATX looms; frees routing space

Plug the male side into the PSU’s 24-pin output and the female side onto the board header; no adapters or pin remapping are required. The 32 cm length clears mid-tower cable grommets and lets the main harness run behind the motherboard tray. Each cord weighs 75 g and uses 2.1 mm OD wire, so it adds minimal bulk while keeping the 24-pin path intact.

Highlights

  • Extends ATX power reach by 32 cm for easier routing
  • 18 AWG tinned-copper conductors rated 80 °C ensure reliable power delivery
  • Male 5557 24-pin (20+4) to female 5559 24-pin connectors fit standard PSU and motherboard
  • Latch and clamp prevent accidental disconnection under vibration
  • Removable cable tie included for tidy cable management

Specifications

BrandLongdex
ModelATXECMP-2
FeaturesThis power extension cord is made by Longdex and features a style with material. It supports a voltage of and an input current of . The cable is Black in color and is UL listed. It comes with a Male-to-Female connector and does not require batteries.

Questions about this item

What motherboard connector must I have free to plug in the 5559 24-pin female end?

You need an available 24-pin ATX motherboard power socket (20+4) to accept the 5559 female connector on the extension cable.

Will the 5557 24-pin male end fit my existing ATX power supply's 20+4 connector?

Yes, the 5557 male connector is a standard 24-pin (20+4) ATX plug and will mate with any ATX PSU 24-pin output.

How can I confirm the extension is seated correctly after routing the 32 cm cables?

The latch on each 24-pin connector clicks audibly when fully inserted, and the removable cable tie lets you secure the 32 cm run without strain on the pins.

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