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

BUCIER

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

SKU CH-MDCD-4DZSQ

A 30 cm 16 AWG red extension cable converts three 8-pin PSU leads to a 12+4 pin GPU connector for RTX 3090 Ti and 40-series cards, supporting up to 600 W with gold-plated terminals and PET sleeving

  • Product colorRed

Color Red

  • Converts existing 3×8-pin cables to 12+4-pin without replacing the PSU
  • Supports 600 W stable output for RTX 3090 Ti and 40-series cards
  • Gold-plated terminals on UL1007 16 AWG wire ensure reliable power delivery
  • High-density PET sleeve resists wear and heat while holding routed shapes
  • 30 cm length with transparent combs keeps the build tidy

Power delivery for RTX 3090 Ti and 40 series

This extension cable converts three existing 8-pin modular PSU connectors into a single 12+4 pin plug. It targets builders upgrading to RTX 3090 Ti, 4070 Ti, 4080 or 4090 graphics cards without replacing their power supply. The 30 cm length suits standard mid-tower layouts.

16 AWG conductors rated for 600 W continuous

Sixteen-gauge UL1007 wires carry up to 600 watts through the 12+4 pin interface, matching the typical 450 W draw of an RTX 3090 Ti with headroom for higher RTX 40 series cards. Gold-plated terminals reduce contact resistance for stable transmission under load.

PET sleeve resists heat and holds routed shape

A high-density flexible PET sleeve provides wear and heat resistance while keeping cables bent to the desired routing. Transparent combs align individual wires for tidy cable management. The assembly operates within the 500 W to 1300 W PSU range without added noise or thermal concerns.

How it compares

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

Price $27.99
Pricier than about 70% of the 7,839 comparable items (median $14.99).

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Specifications

Product
Product colorRed

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Questions about this item

How much power can the 600 W rating on this 12+4 pin cable actually deliver to an RTX 3090 Ti?

The cable supports 600 W stable output through its 16 AWG UL1007 wires and gold-plated terminals, covering the 450 W typical draw of an RTX 3090 Ti with headroom for transient spikes.

What does the 5.0 PCIe label on this extension mean for compatibility with an RTX 4080 or 4090?

It indicates the cable follows the 12VHPWR 12+4 pin specification used by RTX 40 series cards, converting three 8-pin PSU connectors into the single 16-pin GPU connector.

Will the 30 cm length and PET sleeve let me route this cable behind a motherboard tray in a mid-tower case?

At 30 cm (11.8 in) the cable is long enough for typical mid-tower routing, and the high-density PET sleeve holds bends while resisting heat and abrasion.

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