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White and black sleeved 16-pin GPU extension cable with transparent combs, 30 cm long

BUCIER

BUCIER 16Pin 12+4Pin GPU Extension Cable 16AWG 30cm White & Black

SKU CH-RGTK-3B2WM

Converts three 8-pin cables to a 12+4-pin GPU connector at 30 cm length

  • ColorWhite & Black

Color White & Black

  • Converts existing 3*8Pin cables to 12+4Pin without replacing the PSU
  • Gold-plated terminals on UL1007 16AWG wire deliver stable 600W transmission
  • PET-sleeved 30cm extension keeps shape for tidy cable routing
  • Supports RTX 3090Ti and RTX 40-series cards up to 1300W PSUs
  • Transparent combs included for clean 11.8In cable management

16-Pin GPU Power Extension

This 12+4 pin extension cable connects an existing three 8-pin modular power supply output to the 12VHPWR connector found on RTX 3090 Ti and RTX 40 series graphics cards. It is built for builders who want to keep their current power supply while upgrading to a newer high-power GPU. The 30 cm length suits mid-tower and larger cases.

Compatibility Check Before Ordering

Verify that your power supply provides three separate 8-pin PCIe modular cables, not a daisy-chained pair, to meet the 600 W rating of this adapter. Confirm your graphics card uses the 12+4 pin 12VHPWR socket rather than the older 12-pin-only design. The stiff PET sleeve holds bends well, so plan cable routing space around the 30 cm reach.

Thermals Noise and Power Draw

Gold-plated terminals and UL1007 16 AWG conductors are rated for stable 600 W delivery, covering the 450 W typical draw of an RTX 3090 Ti and higher RTX 40 series loads. The cable itself adds no active cooling or moving parts, so it contributes zero noise. Heat resistance is provided by the high-density PET sleeve, keeping surface temperatures safe inside the chassis.

Highlights

  • Converts existing 3*8Pin cables to 12+4Pin without replacing the PSU
  • Gold-plated terminals on UL1007 16AWG wire deliver stable 600W transmission
  • PET-sleeved 30cm extension keeps shape for tidy cable routing
  • Supports RTX 3090Ti and RTX 40-series cards up to 1300W PSUs
  • Transparent combs included for clean 11.8In cable management

Specifications

ColorWhite & Black

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Questions about this item

Does the cable include the three 8-pin connectors and the transparent cable combs, or must I buy them separately?

The extension cable comes with a 12+4 pin connector on one end, three 8-pin connectors on the other, and transparent cable combs are included in the package.

Which version should I choose for an RTX 3090 Ti versus an RTX 4080 or 4090?

This single cable works for both; it converts three 8-pin PSU cables into a 12+4 pin connector rated for 600 W stable output, covering the 450 W typical draw of the 3090 Ti and the higher demands of the 40 series.

What does the 600 W rating mean once the cable is installed in my system?

It means the 16 AWG UL1007 wires and gold-plated terminals can continuously deliver up to 600 W to the graphics card without overheating, suitable for power supplies between 500 W and 1300 W.

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