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Black 16AWG 12VHPWR 12+4 pin male to four 8-pin female PCIe 5.0 extension cable 17.7 inch with three cable combs

FormulaMod

FormulaMod 16AWG 12VHPWR 12+4 Pin to 4x 8 Pin PCIe 5.0 Extension Cable 17.7 inch Black

SKU CH-TQBX-FB2AJ

Extends a 12VHPWR GPU connector to four 8-pin PCIe 5.0 plugs with 16AWG tinned copper, 17.7 inch braided sleeving and three cable combs for tidy routing

Color Black

  • 16 AWG tinned copper delivers stable power to RTX 4090 class cards
  • 7 inch length bridges short PSU cables for tidy routing
  • 12VHPWR male to four 8-pin female connectors adapt legacy PSUs
  • three included cable combs keep sleeved wires aligned and neat
  • pre-bent nylon-braided jacket resists daily wear while staying flexible

What this cable connects

The FormulaMod extension cable bridges a 16-pin 12VHPWR male connector on the graphics card to four 8-pin PCIe female connectors from the power supply. It is built for RTX 4090, 4080 and 4070 Ti cards that use the 12+4 pin interface. The 17.7 inch length adds reach without replacing the existing PSU cables. Installers who need to adapt a new GPU to an older modular supply will find the correct pinout here. Builders whose power supply already provides a native 12VHPWR output do not need this adapter.

Pinout and wire gauge decide compatibility

The single specification that determines fit is the 16AWG tinned copper wire carrying the 12VHPWR 12+4 pin male to four 8-pin (7+1) female arrangement. This matches the PCIe 5.0 power delivery expected by the listed RTX models. The cable is an extension only and must not be plugged directly into the PSU. Systems that lack four available 8-pin PCIe modular ports cannot use this product. Buyers whose PSU already includes a native 12VHPWR cable gain no benefit from adding this extension.

Thermals noise and power draw

The high-density nylon braided jacket and pre-bent ultra-soft construction reduce mechanical stress but do not change the electrical resistance of the 16AWG conductors under load. Three included cable combs keep the four 8-pin branches organised, improving airflow around the wiring loom. Because the cable is passive, it adds no fan noise or active cooling requirement. Power draw at the GPU remains governed by the card and PSU; the extension simply transmits the existing current over the extra 17.7 inches.

Highlights

  • 16 AWG tinned copper delivers stable power to RTX 4090 class cards
  • 7 inch length bridges short PSU cables for tidy routing
  • 12VHPWR male to four 8-pin female connectors adapt legacy PSUs
  • three included cable combs keep sleeved wires aligned and neat
  • pre-bent nylon-braided jacket resists daily wear while staying flexible

Specifications

No published specifications for this item yet.

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Questions about this item

How does the 12+4 pin male connector work with my graphics card once installed?

The 12+4 pin male end plugs directly into the GPU's native 12VHPWR receptacle, extending the connection point for your existing power cables.

What does the PCIe 5.0 rating on this 16AWG cable actually limit in my build?

The PCIe 5.0 designation matches the 12VHPWR connector standard used by current high-end graphics cards for power delivery.

Will the 17.7 inch length and included combs fit cleanly in a mid-tower case?

At 17.7 inches the cable reaches from a typical PSU mounting zone to top-mounted GPU connectors, and three combs are supplied to align the four 8-pin branches.

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