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Two short black ATX sync cables with 20+4 pin connectors

SMUGDESK

SMUGDESK 2-pack 20 cm 20+4 pin 24P dual PSU sync cable 18AWG

SKU CH-AV04-NCPMB

Two 20 cm 18AWG cables let a second ATX power supply start and stop in sync with the primary unit, delivering extra 24-pin power for mining rigs or multi-system test benches

  • Pack of two cables enables dual PSU parallel startup for mining rigs and test benches
  • 20+4 pin split design fits all mainstream Intel and AMD ATX motherboards
  • 18AWG copper wire provides high current capacity with reduced voltage drop under heavy load
  • 20cm flexible PVC jacket simplifies wiring and keeps chassis cable management tidy
  • Locking buckle connectors ensure secure insertion and prevent poor contact from vibration

Dual PSU sync cable

This pack contains two 20-centimetre cables that let a single motherboard start and stop two ATX power supplies simultaneously. They are built for mining rigs, multi-host test benches and any system that needs more wattage than one PSU can provide. The 20+4 pin split connector fits every standard 24-pin ATX motherboard socket.

18AWG copper and heat-resistant jacket

Each cable uses 18AWG high-purity copper conductors to keep resistance low and voltage drop minimal during continuous heavy loads. A flexible PVC sheath resists abrasion and high temperatures while staying pliable for tidy routing inside a crowded chassis. Locking buckles on the connectors prevent accidental disconnection caused by vibration.

Sustained 24-hour load stability

The design targets uninterrupted operation under full load for 24 hours a day, such as in cryptocurrency mining or extended hardware validation. Synchronous triggering ensures the auxiliary PSU never lags behind the primary unit, eliminating the overload restarts and component stress that occur when a single supply is pushed past its limit.

How it compares

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Price $19.99
Pricier than about 70% of the 401 comparable items (median $14.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How do I connect the 20+4Pin split connectors to both PSUs for synchronous start?

Plug the single 24Pin end into the motherboard ATX socket, then attach each 20+4Pin branch to the 24Pin connector of each power supply; the locking buckles click when fully seated, which is the step often missed

What maintenance will the 18AWG cable and PVC jacket need over time?

Inspect the heat-resistant PVC jacket and copper conductors periodically for cracking or discoloration from continuous heavy load, and reseat the locking buckles if vibration loosens them

What limit appears first when the dual PSU sync cable runs under sustained heavy load?

The 18AWG copper wire’s current-carrying capacity and voltage drop become the limiting factor before the PVC jacket reaches its temperature rating

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