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Black 16-pin to dual 8-pin GPU power extension cable, sleeved, 13-inch length

Vszerda

Vszerda 12VHPWR GPU power extension cable 16-pin to dual 8-pin 13-inch black

SKU CH-Q47Z-V30PK

A 13-inch PCIe 5.0 extension cable connects a 16-pin GPU to dual 8-pin PSU connectors for RTX 4070 series cards, using 16 AWG tinned copper for stable 450 W peak delivery

  • Designed for RTX 4070 series GPUs with 16-pin connectors
  • Dual 8-pin female ends deliver up to 450 W peak power
  • 16 AWG tinned copper wires ensure stable voltage transmission
  • Alloy copper and tinned terminals prevent heat buildup at the plug
  • 13-inch length with flexible braided sleeve keeps routing tidy

Targeted GPU power extension

This Vszerda 16-pin to dual 8-pin extension cable is built for GeForce RTX 4070, 4070 Ti and 4070 Super graphics cards that use the 12VHPWR connector. It lets builders route power from two standard PCIe 8-pin PSU outputs to the card's single 16-pin socket. The 13-inch length adds reach without excess slack inside the case. The product is new and intended for internal desktop builds.

Thermals noise and power headroom

Alloy copper and tinned terminals on the 16AWG conductors deliver stable voltage transmission with no heat at the plug or along the cable. The dual 8-pin design supports 400W to 450W continuous output with a peak rating of 450W, matching the power envelope of the target RTX models. Flexible high-density sleeving and nylon braiding reduce stiffness, helping the cable sit cleanly without sharp bends that can raise contact resistance.

Upgrade scope and limits

This cable replaces the stock 12VHPWR adapter or a short factory lead when the power supply only provides 8-pin PCIe connectors. It is not for GPUs outside the RTX 4070 series, nor for power supplies that lack two spare 8-pin outputs. Builders needing a native 12VHPWR PSU cable or a longer run than 13 inches should look elsewhere.

Highlights

  • Designed for RTX 4070 series GPUs with 16-pin connectors
  • Dual 8-pin female ends deliver up to 450 W peak power
  • 16 AWG tinned copper wires ensure stable voltage transmission
  • Alloy copper and tinned terminals prevent heat buildup at the plug
  • 13-inch length with flexible braided sleeve keeps routing tidy

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 13-inch 16-pin male to dual 8-pin female extension cable and what step is often missed?

Connect the two 8-pin female ends to the power supply cables first, then insert the 16-pin male plug into the GPU until the latch clicks, ensuring the cable runs without sharp bends.

What maintenance or replacement will the 16AWG tinned copper wire and alloy copper terminals need over time?

Inspect the connectors periodically for dust or discoloration; reseat the plugs if temperatures rise, and replace the cable if the braided sleeve frays or the terminals show corrosion.

At what sustained load does the 12VHPWR extension cable hit its thermal limit first?

The cable is rated for 400 W to 450 W continuous output with a 450 W peak; sustained loads above 450 W will cause the 16AWG conductors to reach their thermal limit first.

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