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Sleeved PCIe 5.0 extension cable 12+4 pin male to three 8-pin female connectors 30cm 16AWG

PISKEKAT

PISKEKAT PCI-e 5.0 12+4pin to 3x8pin 30cm 16AWG 600W RTX 3090 4070 4080 4090

SKU CH-EJYK-4P08D

A 30 cm PCI-e 5.0 extension cable converts one 12+4 pin connector into three 8-pin connectors using 16 AWG tinned copper wire for up to 600 W delivery to RTX 3090 Ti, 4070 Ti.

  • TypeServer
  • Stable voltage delivery with 16AWG tinned copper wire
  • Supports 600W output for RTX 3090 Ti 4070 Ti 4080 4090
  • 30cm extension adds flexibility for tidy cable routing
  • PCIe 5.0 12+4pin to three 8pin connectors
  • Oxidation-resistant tinned copper ensures long-term reliability

Power Extension for 12VHPWR GPUs

This PISKEKAT PCI-e 5.0 extension cable adds 30 cm of reach between a power supply and a compatible graphics card. It converts a single 12+4-pin 12VHPWR male connector into three 8-pin (6+2) female connectors, allowing the GPU to draw power from three separate PSU ports. The 16AWG tinned copper conductors are rated for up to 600 W of continuous output.

Suited for tidy high-end builds

Builders installing an RTX 3090 Ti, 4070 Ti, 4080 or 4090 who need a clean cable run will find the sleeved design and four included combs useful for cable management. The cable is not suitable for the older 12-pin Founders Edition connector found on the standard RTX 3090, nor for any GPU lacking a 12+4-pin receptacle. Systems whose power supply offers fewer than three free 8-pin PCI-e ports cannot use this adapter safely.

16AWG tinned copper conductor

The defining specification is the 16AWG tinned copper wire, which is thicker than the common 18AWG alternative and resists oxidation for stable voltage delivery. This gauge supports the full 600 W rating across the three 8-pin branches, provided all three connectors are populated on the power supply side.

Highlights

  • Stable voltage delivery with 16AWG tinned copper wire
  • Supports 600W output for RTX 3090 Ti 4070 Ti 4080 4090
  • 30cm extension adds flexibility for tidy cable routing
  • PCIe 5.0 12+4pin to three 8pin connectors
  • Oxidation-resistant tinned copper ensures long-term reliability

Specifications

TypeServer

Questions about this item

What power-supply connectors must I already have free to use this 12+4-pin extension cable?

You need three unused 8-pin PCI-e ports on your PSU; plugging in fewer than three can damage the system.

Will this 16 AWG sleeved cable work with an older PSU that only has 6+2-pin PCI-e outputs?

Yes — the cable splits the 12+4-pin male end into three 6+2-pin female connectors, so it fits standard 8-pin PSU ports.

How can I verify the 600 W-rated extension is delivering stable power after installation?

Check that the GPU posts normally, monitor 12 V rail voltage in hardware-monitoring software, and confirm no shutdowns under heavy 3D load.

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