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2 Pack 4-Pin (Actual 2-Pin) Molex to 3 Pin 12V PC Case Fan Power Adapter Cable, 3-Pin or 4-Pin (PWM Connector) to Molex Computer Case Fan Power Adapter Cable
OPSFALCON

OPSFALCON 2 Pack 4-Pin (Actual 2-Pin) Molex to 3 Pin 12V PC Case Fan Power Adapter Cable

Bottom line: The 2 Pack 4-Pin Molex to 3 Pin 12V PC Case Fan Power Adapter Cable ($5.94 on Amazon as of 2026-10-06): 10-inch sleeved run reaches from PSU Molex chains to top or rear fan headers; main trade-off: molex end is a 2-pin build, not a fully populated 4-pin shell.

$5.94

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Buy on Amazon — $5.94 Compare to similar power supplies & cables

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

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.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ 10-inch sleeved run reaches from PSU Molex chains to top or rear fan headers
  • ✓ Accepts both 3-pin and 4-pin PWM fan plugs on the same connector
  • ✓ Black high-density sleeving hides the run against dark case interiors

Cons

  • ✗ Molex end is a 2-pin build, not a fully populated 4-pin shell
  • ✗ Fixed 12V feed means fans run full speed with no PWM or voltage control
  • ✗ No motherboard tach wire, so fan RPM will not report in BIOS or software
  • ✗ 10 inches is short for full-tower routing behind the motherboard tray

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SpecPicks Verdict

SpecPicks scored 2 Pack 4-Pin Molex to 3 Pin 12V PC Case Fan Power Adapter Cable using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies & cables category. OPSFALCON'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

  • 4 Pin Molex to 3 pin 12V PC case fan power adapter cable, Please note this 4-Pin Molex is actual 2-Pin but it still works fine on your computer
  • Use to connect any 3pin or 4pin (PWM Connector) fan to a 4pin molex connector
  • High density black sleeving cable, 10 inch length
  • Fans will be operated at the fixed Molex voltage of 12V
  • 2 Pack 4-Pin (Actual 2-Pin) Molex to 3 Pin 12V PC Case Fan Power Adapter Cable, 3-Pin or 4-Pin (PWM Connector) to Molex Computer Case Fan Power Adapter Cable

Full Specifications

BrandOPSFALCON
ColorBlack
Voltage12 Volts
Wattage18 watts
Plug Type3-pin PC case fan connector
Unit Count2 Count
Item Length10 Inches
Plug Format3-pin PC case fan connector
Model Number8541605787
CompatibilityPC
Mfr Part Number8541605787
Connector GenderMale-to-Female
Indoor Outdoor UsageIndoor, Outdoor
Power Cord Prong Count4
Full listing title2 Pack 4-Pin (Actual 2-Pin) Molex to 3 Pin 12V PC Case Fan Power Adapter Cable, 3-Pin or 4-Pin (PWM Connector) to Molex Computer Case Fan Power Adapter Cable

Ready to buy?

2 Pack 4-Pin (Actual 2-Pin) Molex to 3 Pin 12V PC Case Fan Power Adapter Cable, 3-Pin or 4-Pin (PWM Connector) to Molex Computer Case Fan Power Adapter Cable 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.

Buy on Amazon — $5.94

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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2 Pack 4-Pin (Actual 2-Pin) Molex to 3 Pin 12V PC Case Fan Power Adapter Cable, 3-Pin or 4-Pin (PWM Connector) to Molex Computer Case Fan Power Adapter Cable
$5.94
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