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Two black ATX 24-pin to Molex 4-pin adapter cables

Manw

Manw 2-Pack ATX 24 Pin to Molex 4Pin Connector

SKU CH-MJ4N-F8S2Y

Two-pack adapter connects an ATX 20/24-pin supply to a Molex 4-pin plug for dual-PSU mining rigs

  • Sync two PSUs with one motherboard signal
  • Connect ATX 24-pin and Molex 4-pin interfaces
  • Power multiple GPUs without a single high-watt unit
  • 2-pack lets you build redundant mining rigs
  • Extends PSU life by balancing load across units

Dual PSU Adapter for Mining Rigs

This Manw 2-pack connects a secondary power supply to the main motherboard using an ATX 20-pin plug and a Molex 4-pin connector. It allows two units to power on simultaneously so that high-demand mining rigs can share the load across both supplies. The adapter is intended for builders running multiple graphics cards on a single system. Buyers who need a single high-wattage unit instead of a dual-PSU setup will not find that capability here.

ATX 20-Pin and Molex 4-Pin Headroom

The card bridges the main 20-pin ATX socket and a Molex 4-pin lead from the second PSU so that both units start together. It supports configurations where five graphics cards draw more power than one supply can deliver. The adapter does not increase the wattage of either supply; it only synchronises their on and off states. Systems that require a 24-pin primary connector or additional PCIe power cables will need separate solutions.

Passive Sync Cable Thermals and Draw

The device contains no active cooling, so it adds no fan noise and draws negligible power itself. Heat is limited to the contact resistance of the ATX and Molex pins during normal operation. Because it is a passive wiring harness, there are no semiconductors to throttle or overheat. Builds that rely on active thermal management for the adapter itself are not supported by this design.

Highlights

  • Sync two PSUs with one motherboard signal
  • Connect ATX 24-pin and Molex 4-pin interfaces
  • Power multiple GPUs without a single high-watt unit
  • 2-pack lets you build redundant mining rigs
  • Extends PSU life by balancing load across units

Specifications

BrandManw

Questions about this item

Will this adapter let me start a second PSU alongside my existing 24-pin ATX supply?

Yes — plug the primary 24-pin into the board and the secondary PSU’s 4-pin Molex into the card; both units then power on together.

How can I confirm the sync is working once everything is connected?

Press the case power button; if both PSU fans spin up at the same moment the adapter is functioning.

The listing says 2-pack — does each unit include the 24-pin female and 4-pin male ends, or do I need extra cables?

Each of the two adapters has a 24-pin female socket and a 4-pin Molex plug built in; no additional cables are required for the sync function.

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