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White sleeved PSU extension cable kit with 24-pin ATX, three GPU 8-pin and two CPU 8-pin cables, 300 mm length

FormulaMod

FormulaMod Fm-NCK1 300mm Power Extension Cord Kit White Opposite Bending

SKU CH-H5CP-DDY4P MPN Fm-NCK1

A 300 mm sleeved extension kit adds ATX 24-pin, three PCI-E 8-pin and two EPS 8-pin cables with 18 AWG cores and nylon braid

  • Product typeStraight
  • Premium nylon braid protects 18 AWG conductors with heat-resistant insulation
  • 300 mm extensions reach across full-tower builds without tension
  • Kit supplies ATX 24-pin, three PCI-E 8-pin and two EPS 8-pin cables
  • Opposite-bend connectors route cleanly behind motherboard trays
  • Included comb board organises every cable for a tidy interior

Kit contents and target builds

This FormulaMod Fm-NCK1 kit bundles one ATX 24-pin, three PCI-E 8[6+2]-pin and two EPS 8[4+4]-pin extensions plus a comb board. It suits builders who want uniform white sleeved cables across every power rail in a standard ATX system.

Thermals, noise and power draw

Each lead uses 18 AWG cores wrapped in insulated material and a soft nylon braid, rated for normal PSU loads without added resistance. The straight layout and 300 mm length keep voltage drop minimal while producing no audible noise of their own.

Build integration and trade-offs

Male 5557 to female 5559 connectors plug directly between any ATX supply and the motherboard or graphics card, with the unused 6+2 or 4+4 sections tucked behind the tray. The kit does not replace a modular cable set, so it adds bulk rather than reducing it.

How it compares

Measured against everything we stock in AC Extension Cords, at today’s prices. Recalculated every night.

Price $26.99
Pricier than about 82% of the 864 comparable items (median $15.99).

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Specifications

Product
Product typeStraight

Questions about this item

How do I route the 300mm ATX 24-pin extension behind the motherboard tray without kinking the nylon braid?

Feed the Male 5557 connector through the grommet first, then lay the 3 mm sleeved cable flat against the tray; the 18 AWG core bends cleanly at 300 mm if you avoid folding it tighter than the comb board slots allow.

When should I replace the cable comb board if the polypropylene clips start to loosen?

Swap the comb board once the cut-out clips no longer hold the 24-pin, 8-pin PCI-E or 8-pin EPS cables firmly — usually after several rebuilds when the polypropylene fatigues from repeated flexing.

What sustained load makes the 18 AWG wires hit their thermal limit first?

Continuous current near the 18 AWG rating on the EPS 8-pin CPU lines generates the most heat inside the 3-layer insulation, so the CPU power cables reach their thermal ceiling before the ATX or PCI-E runs.

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