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Gray sleeved 16-pin to four 8-pin PCIe 5.0 extension cable with three cable combs

FormulaMod

FormulaMod 16AWG RTX 4090 4080 4070 3090 16Pin to 4x8Pin PCIe 5.0 Extension Cable 17.7 inch Gray

SKU CH-JWG3-9YZXG

Connects a 16-pin GPU to four 8-pin PSU cables, extending reach by 17.7 inches with 16AWG tinned copper and nylon braid

Color Gray

  • Extends GPU power reach by 17.7 inches using 16AWG tinned copper wire
  • 12VHPWR male to four 8-pin female connectors support RTX 4090 4080 4070 3090
  • Three included cable combs enable tidy routing and consistent cable alignment
  • High-density nylon braided jacket protects conductors from daily wear and tear
  • PCIe 5.0 rated extension connects to existing modular PSU cables without PSU replacement

Compatibility

This extension cable connects a 16-pin 12VHPWR graphics card to four 8-pin PCIe power cables from an existing supply. It supports RTX 4090, 4080, 4070 and 3090 models that use the 12+4 connector. Builders who need to adapt a new GPU to a current modular PSU without replacing the unit will find it useful. It is not for systems that lack four 8-pin PCIe outputs or that require a native 12VHPWR PSU cable.

Build and connectors

The wire uses 16AWG tinned copper inside a nylon braided jacket for durability and a clean look. Three cable combs are included to align the four 8-pin branches and the 16-pin plug for tidy routing. The 17.7 inch length adds reach between the PSU and GPU while keeping the layout organised. Buyers who prefer a single-piece 12VHPWR cable from the PSU or who need a different colour scheme cannot use this product.

Thermals and power

High-density copper conductors reduce resistance so the link runs cool under normal load. The braided sleeve protects the wires from abrasion during installation and daily use. No active cooling or fan is involved because this is a passive power extension. It is not for direct connection to a PSU 12VHPWR port; doing so would bypass the intended four 8-pin source and could exceed the cable's design limits.

Highlights

  • Extends GPU power reach by 17.7 inches using 16AWG tinned copper wire
  • 12VHPWR male to four 8-pin female connectors support RTX 4090 4080 4070 3090
  • Three included cable combs enable tidy routing and consistent cable alignment
  • High-density nylon braided jacket protects conductors from daily wear and tear
  • PCIe 5.0 rated extension connects to existing modular PSU cables without PSU replacement

Specifications

No published specifications for this item yet.

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Questions about this item

What does the 12+4 pin PCIe 5.0 connector on this cable support?

The 12+4 pin male connector follows the PCIe 5.0 standard and mates with 16-pin sockets on RTX 4090, 4080, 4070 and 3090 graphics cards.

How much clearance do I need for the 17.7 inch sleeved extension with its three cable combs?

The 17.7 inch length plus three included combs requires enough room behind the motherboard tray or in the basement to route four 8-pin female branches without sharp bends.

Which end of the extension plugs into the power supply and which end goes to the GPU?

Connect your PSU's existing 8-pin modular cables into the four 8-pin female ends, then plug the 12+4 pin male end into the graphics card — never insert the male end into the PSU.

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