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16-pin male to three 8-pin female PCIe 5.0 extension cable black and white braided 17.7 inches

FormulaMod

FormulaMod 16Pin (12+4) to 3x8Pin PCIe 5.0 Extension Cable 17.7in Black+White

SKU CH-CG8Y-688S6

A 16-pin PCIe 5.0 extension cable that converts a single 12+4 connector to three 8-pin sockets for RTX 3090, 4080 and 4090 graphics cards

Color Black+White

  • Extends GPU power reach with 17.7 inch cable length
  • 16-pin 12VHPWR male to three 8-pin female connectors
  • High-density 16AWG tinned copper wire for stable delivery
  • Durable nylon braided jacket protects against daily wear
  • Includes three cable combs for clean routing

FormulaMod 16Pin Extension Cable

This FormulaMod extension cable converts a 16 (12+4) Pin male connector into three 8 (7+1) Pin female connectors. It measures 17.7 inches and uses high-quality 16AWG tinned copper wire wrapped in a durable nylon braided jacket. The black and white sleeved design includes three cable combs for clean routing. It is built to the PCIe 5.0 specification.

Suits builders adapting existing PSU cables

The cable works with RTX 3090, 4080 and 4090 series cards that use the 12VHPWR interface. It lets you keep your current power supply and connect legacy dual 8-pin modular cables to the GPU. Buyers who need a direct PSU-to-GPU cable without an intermediate extension should look elsewhere. This is not a replacement for a native 12VHPWR PSU cable.

Verify your PSU has the required 8-pin PCIe

This product is an extension cable only; do not plug it directly into the power supply. Ensure your modular PSU cables provide enough 8-pin connectors to feed all three female ports. Confirm the 17.7 inch length fits your case routing plan and that the pre-bent design aligns with your GPU orientation. Check that your graphics card uses the 16 (12+4) pin connector.

How it compares

Measured against everything we stock in AC Extension Cords, at today’s prices. Recalculated every night.

Price $20.99
Pricier than about 70% of the 864 comparable items (median $15.99).

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Specifications

No published specifications for this item yet.

Other versions of this model

5 more in the same range

Questions about this item

What power supply cables do I need to connect to the three 8-pin female connectors?

You need a power supply with three available 8-pin (7+1) PCIe modular cables to plug into the female ends of this extension.

Will this 16-pin extension work with my existing RTX 3090 or RTX 4080 graphics card?

Yes, the 12+4 pin male connector is compatible with RTX 3090 Ti, RTX 4090 and RTX 4080 series cards that use the 12VHPWR interface.

How can I verify the extension is delivering stable power after installation?

The system should boot normally, the GPU should reach its rated clocks under load, and no power-related crashes or connector heating should occur.

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