CRJ 4-Pin Peripheral Molex Extension Cable - 12-inch (30cm), Black Sleeved - Extend 4-Pin Peripheral Molex Power for Computer ATX Power Supplies

CRJ Electronics

CRJ Electronics CRJ 4-Pin Peripheral Molex Extension Cable

Name: CRJ 4-Pin Peripheral Molex Extension Cable - 12-inch (30cm), Black Sleeved - Extend 4-Pin Peripheral Molex Power for Computer ATX Power Supplies
Brand: CRJ Electronics
SKU: B07BMJ7GD9

Bottom line: The CRJ Electronics CRJ 4-Pin Peripheral Molex Extension Cable: Fully sleeved in high-density black braid to hide wiring in a windowed build; main trade-off: low-tolerance 4-pin connector needs careful pin alignment on every insertion.

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By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-06

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Pros & Cons

Pros

✓ Fully sleeved in high-density black braid to hide wiring in a windowed build
✓ 12-inch (30cm) total length adds reach without coiling slack behind the tray
✓ All-black connector housings match dark PSU cables and drive bays
✓ Feeds legacy 4-pin IDE drives, case fans, and other Molex devices from one ATX rail

Cons

✗ Low-tolerance 4-pin connector needs careful pin alignment on every insertion
✗ 12 inches only, so long runs to a top-mounted drive cage still fall short
✗ Single Molex output, not a splitter to multiple drives or fans
✗ Molex is legacy, so it is useless on a modern SATA-only or ATX 3.x build

SpecPicks Verdict

SpecPicks scored CRJ Electronics CRJ 4-Pin Peripheral Molex Extension Cable using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies & cables category. CRJ Electronics's power supplies & cables 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 power supplies & cables 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.

Key Features

This 4-pin peripheral molex extension cable allows you to extend the 4-pin power from your ATX power supply to your 4-pin IDE drives, cooling fans, and other devices.
Premium cable construction features all black connectors and high density sleeving for minimal wire visibility.
Note: due to the low-tolerance nature of the legacy 4-pin connector it's important to align the pins when connecting.
Total cable length (including connectors) is 12 inches (30cm)

Full Specifications

Note	due to the low-tolerance nature of the legacy 4-pin connector it's important to align the pins when connecting.
Brand	CRJ Electronics
Color	Black
Model	4022
Cable Type	4-Pin Peripheral Extension
Item Shape	Round
Model Name	4-Pin Peripheral Molex 12" Extension Cable
Unit Count	1.0 Count
Item Length	12 Inches
Part Number	4351120202
Connector Type	Female 4-pin Peripheral Molex, Male 4-pin Peripheral Molex
Number of Pins	4
Maximum Voltage	12 Volts
Number of Items	1
Special Feature	Sleeved
Connector Gender	Male-to-Female
Compatible Devices	Personal Computer
Data Transfer Rate	6 Gigabits Per Second
Indoor Outdoor Usage	Indoor, Outdoor
Customer Package Type	sealed anti-static bag or coiled in protective tubing
Full listing title	CRJ 4-Pin Peripheral Molex Extension Cable - 12-inch (30cm), Black Sleeved - Extend 4-Pin Peripheral Molex Power for Computer ATX Power Supplies

Ready to buy?

CRJ 4-Pin Peripheral Molex Extension Cable - 12-inch (30cm), Black Sleeved - Extend 4-Pin Peripheral Molex Power for Computer ATX Power Supplies is vintage hardware; the used and vintage market on eBay carries most of the live inventory. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. It also has an Amazon listing — check it for current price and availability. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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