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White sleeved 12+4 pin GPU extension cable with transparent combs, 30cm length

BUCIER

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

SKU CH-ZZJS-TZNQX

A 30 cm white 16 AWG extension converts three 8-pin PSU cables into a 12+4 pin connector for RTX 3090 Ti and 40-series cards, rated to 600 W with gold-plated terminals and UL1007 wiring

  • Product colorWhite

Color White

  • Converts existing 3×8 Pin modular cables to 12+4 Pin without PSU replacement
  • Gold-plated terminals and UL1007 16AWG wire deliver stable 600 W transmission for RTX 3090Ti and 40-series
  • High-density PET sleeve resists wear and heat while holding shaped bends to save chassis space
  • 30 cm length with transparent combs keeps cable routing tidy inside the case
  • Rated for 500–1300 W power supplies, matching 5.0 PCIE extension standard

12+4 Pin GPU Extension Cable

This white sleeved cable converts three 8-pin modular PSU cables into a single 12+4 pin connector for RTX 3090 Ti and RTX 40 series graphics cards. It uses 16AWG UL1007 wiring rated for 600 W stable output. The 30 cm length includes transparent cable combs for tidy routing inside the chassis.

Build integration and space savings

The adapter plugs into existing modular 8-pin cables, so the power supply does not need replacement. Its high-density PET sleeve holds shape after bending, reducing clutter and freeing room around the graphics card. Gold-plated terminals ensure reliable contact across the 5.0 PCIe power standard.

Thermals, noise and power draw

The cable assembly is passive and adds no fan noise or active heat. 16AWG conductors and UL1007 insulation handle loads from 500 W up to 1300 W PSU capacities without overheating. The stiff yet flexible sleeve resists wear and maintains airflow paths in normal operation.

How it compares

Measured against everything we stock in Internal PSU & Riser Cables, at today’s prices. Recalculated every night.

Price $29.99
Pricier than about 71% of the 7,839 comparable items (median $14.99).

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Specifications

Product
Product colorWhite

Other versions of this model

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Questions about this item

How much continuous power can the 12+4 pin extension deliver before it becomes the limiting factor?

The cable is rated for 600 W stable output, matching the 12VHPWR 5.0 specification for RTX 3090 Ti and 40-series cards.

Does the 16 AWG UL1007 wire and PET sleeve stay cool and quiet during all-day loads?

The 16 AWG conductors and high-density PET sleeve are rated for wear and heat resistance, so the cable runs cool and adds no audible noise.

What existing PSU cables must I already have to use this 30 cm white extension?

You need three free 8-pin PCIe modular cables from a 500–1300 W power supply to plug into the adapter ends.

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