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Formulamod Sleeve Extension Power Supply Cable Kit 18AWG ATX 24P+ EPS 8-P+PCI-E8-P with Combs for PSU to Motherboard/GPU (Blue)
Formulamod

Formulamod Sleeve Extension Power Supply Cable Kit 18AWG ATX 24P+ EPS 8-P+PCI-E8-P

Bottom line: The Formulamod Sleeve Extension Power Supply Cable Kit 18AWG ATX 24P+ EPS: Covers a full single-GPU build: 24-pin ATX, 4+4 EPS, and two 8-pin PCI-E; main trade-off: extensions add a second connector junction behind the tray.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

Pros & Cons

Pros

  • ✓ Covers a full single-GPU build: 24-pin ATX, 4+4 EPS, and two 8-pin PCI-E
  • ✓ Thick 18AWG conductors, heavier gauge than most stock PSU cabling
  • ✓ Pre-bent layering keeps the 24-pin flat after a 180-degree turn
  • ✓ Cable combs included, so no separate purchase to set wire spacing
  • ✓ Extension design plugs into any PSU, no pinout matching required

Cons

  • ✗ Extensions add a second connector junction behind the tray
  • ✗ Adds length to every run, so small-form-factor cases get crowded
  • ✗ Blue only in this listing, which limits color-matched builds
  • ✗ No 6-pin PCI-E or SATA/Molex extensions in the kit

Manufacturer description

The Formulamod sleeved cable extension kit is the cheap, visible upgrade for a PC build where the stock PSU spaghetti is the only thing letting the window down. The kit ships four extensions: one 24-pin ATX, one 4+4-pin EPS for the CPU header, and two 8-pin PCI-E runs for the GPU, so a single-card build is covered end to end. Each cable uses thick 18AWG wire inside a high-density flexible sleeve, which is the combination you want behind the motherboard tray: stiff enough to hold a shape, pliable enough to route without fighting you. Formulamod's pre-bent design makes the upper-layer wires…

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SpecPicks Verdict

SpecPicks scored Formulamod Sleeve Extension Power Supply Cable Kit 18AWG ATX 24P+… using a rating × review-volume × price-fit model applied to published specs and reviews across the accessories category. Formulamod's accessories lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for accessories of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Will these cables work with my power supply?

Yes. These are extensions, not replacement cables, so they plug into the connectors already on your PSU. Formulamod lists them as compatible with all power supplies, which avoids the pinout-mismatch risk of brand-specific custom cables.

What cables are included in the kit?

Four extensions: one 24-pin ATX for the motherboard, one 4+4-pin EPS for the CPU power header, and two 8-pin PCI-E for the graphics card. Cable combs are included for routing and spacing.

What wire gauge are these cables?

18AWG throughout, housed in a high-density flexible sleeve. That is a thicker gauge than the wiring on many stock PSU harnesses, and the sleeve is designed to stay stiff enough to hold a routed shape.

Do these cables stay neat after bending?

That is the point of the pre-bent design. The upper-layer wires are cut slightly longer than the lower-layer ones, so the bundle stays flat and even after a 180-degree bend instead of bowing out at the fold.

Are these cables worth it for a first build?

They are a low-risk cosmetic upgrade for a windowed case: no PSU-specific pinout to verify, and combs in the box. Check the listing for current dimensions and length before ordering.

Key Features

  • Including (1) 24-P ATX, (1) 4 + 4P EPS, (2) 8-P PCI-E
  • All cables are manufactured with thick 18AWG wires and come in a high-density flexible protective sleeve allowing for a stiff yet adaptable temperament. Comes with several cable combs to cleanly route and organize.
  • Premium sleeved cable extension, compatible with all power supplies
  • Pre-bent Design: The upper layer cables are slightly longer than the down layer ones, which make the cables remain a perfect neat look after bent 180° .
  • Heat-Shrink-Less Cable Design

Full Specifications

BrandFormulamod
Colorblue
Gauge18
ModelFm-NCK1-300
Wattage18 watts
Cable TypePCIe, ATX
Item ShapeRound
Unit Count1 Count
Item Length30 centimeters
Part NumberFm-NCK1-300
Connector Type24 Pin ATX, 8 Pin PCIe
Number of Pins36
Outer MaterialNylon or similar synthetic material
Maximum Current9.5 A
Number of Items1
Pre-bent DesignThe upper layer cables are slightly longer than the down layer ones, which make the cables remain a perfect neat look after bent 180° .
Special FeaturePremium Sleeved & Customizable
Connector GenderMale-to-Female
Compatible DevicesPC
Indoor Outdoor UsageIndoor, Outdoor
Full listing titleFormulamod Sleeve Extension Power Supply Cable Kit 18AWG ATX 24P+ EPS 8-P+PCI-E8-P with Combs for PSU to Motherboard/GPU (Blue)

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Formulamod Sleeve Extension Power Supply Cable Kit 18AWG ATX 24P+ EPS 8-P+PCI-E8-P with Combs for PSU to Motherboard/GPU (Blue) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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Formulamod Sleeve Extension Power Supply Cable Kit 18AWG ATX 24P+ EPS 8-P+PCI-E8-P with Combs for PSU to Motherboard/GPU (Blue)
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