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Black sleeved 12VHPWR 16-pin to three PCIe 8-pin cables with combs

FormulaMod

FormulaMod 12VHPWR 16-pin to 3× PCIe 8-pin 300 mm Black

SKU CH-6W9W-6VQEQ

Converts three PCIe 8-pin cables into one 12VHPWR connector for RTX 40-series and 3090 Ti cards, using 16 AWG wire rated for 600 W and includes a dedicated comb

  • Product colorBlack
  • Powers RTX 40-series and 3090 Ti via 12VHPWR
  • Converts three PCIe 8-pin cables to single 16-pin connector
  • 16 AWG tinned copper handles up to 600 W
  • Dedicated 12+4-pin comb keeps cables neat
  • 300 mm length fits most case layouts

12VHPWR adapter for RTX 40 series

This FormulaMod cable converts three independent PCIe 8-pin connectors from an existing power supply into a single 16-pin 12VHPWR plug. It targets builders upgrading to an RTX 40 series or 3090 Ti graphics card without replacing their PSU. The 300 mm length suits typical mid-tower routing. A dedicated 12+4 pin wire comb is included for tidy cable management.

Thermals and power delivery

The cable uses 16 AWG tinned copper wire with a three-layer braid designed for low resistance. The manufacturer rates maximum power delivery above 600 W, allowing the adapter to run at full load without getting hot. No active cooling is required; heat stays within normal limits for internal power cables. The extension design adds no measurable electrical noise to the system.

Upgrade path and fit

This adapter replaces the need for a new ATX 3.0 power supply when the current unit only offers PCIe 8-pin outputs. It is not for users whose PSU already provides a native 12VHPWR connector or who lack three separate 8-pin cables. The jump is worth it when moving to an RTX 40 series or 3090 Ti while retaining a quality PSU with sufficient 8-pin capacity.

How it compares

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

Price $17.99
Pricier than about 58% of the 7,839 comparable items (median $14.99).

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Specifications

Product
Product colorBlack

Questions about this item

How do I install the FormulaMod 12VHPWR cable without damaging the sense wires near the 16-pin connector?

Route the 300 mm cable so the 16-pin end has a gentle curve; never bend sharply within 12 mm of the plug. Push the connector straight in until it clicks, then slide each of the three included combs slowly into place — forcing them can snap the sense wires.

What maintenance will the 16 AWG tinned-copper conductors and combs need over time?

Inspect the braided sleeving and 16-pin contacts every few months for dust or discolouration. Reseat the connector if you see any carbon tracking. Combs only need repositioning if cables shift; slide them gently to avoid stressing the sense leads.

At what sustained load does the 16 AWG cable hit its thermal limit first?

The cable is rated for a maximum of 600 W continuous draw. Running at or above that level for extended periods will cause the conductors to heat up before any other component reaches its limit.

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