COMeap 12VHPWR to Dual 8-Pin PCIe Adapter, 7in (18cm) Sleeved 16AWG Cable — 6+2 Modular Split for High-Power GPUs

COMeap's 12VHPWR Cable Extension converts a single 16-pin (12+4) 12VHPWR PSU output into two 8-pin (6+2) PCIe connectors so you can power modern GPUs from compatible ATX3/ATX3.1 power supplies.

When upgrading or building a system with a high-power graphics card, you may need a short, reliable adapter to bridge newer 12VHPWR outputs and traditional 8-pin GPU inputs. This 7-inch (18cm) conversion cable from COMeap provides a compact, sleeved solution with standard 16‑AWG conductors rated to support heavy GPU loads. It’s intended as a conversion lead — not a modular PSU replacement — and includes simple mounting tape for tidy routing inside the case.

How does this cable let my ATX3/ATX3.1 PSU run an older 8-pin GPU?

The cable takes the PSU’s 16-pin (12+4) female 12VHPWR output and splits it into two 8-pin (6+2) male PCIe plugs that most graphics cards accept. The 6+2 design lets you use each end as either a 6-pin or full 8-pin connector by sliding the detachable 2-pin segment into place.

• 16-pin (12+4) female input connects to original PSU 12VHPWR cable.
• Two 8-pin (6+2) male outputs for dual PCIe power sockets.
• 6+2 segments are removable to match 6-pin or 8-pin GPU requirements.

Will this adapter carry enough current for high-power GPUs?

COMeap designed the cable with 1007 16AWG tin-coated copper conductors to handle substantial current; the manufacturer rates it to support up to around 600W total across the outputs when used as intended. Still, accurate power delivery depends on your PSU’s 12VHPWR feed and the GPU’s documented power draw.

• Wire gauge: 16AWG, tin-coated copper for reliable conductivity.
• Length: 7 inches (18cm) keeps routing compact and tidy.
• Rated to support high output when paired with appropriate PSU cable.

Is this plug-and-play or does it need special mounting and warnings?

It’s a plug-in conversion cable intended for systems that already have the PSU’s 12VHPWR lead. No soldering or adapter mods are required, but follow manufacturer guidance: this is a conversion cable, not a modular PSU cable or replacement. COMeap includes self-adhesive tape to secure the cable and recommends checking connector seating before powering up.

• Plug the female 16-pin onto the PSU 12VHPWR output cable only.
• Attach each 6+2 end to the GPU’s PCIe power sockets, sliding on/off the 2-pin as needed.
• Use included tape to fasten cable and confirm firm connector engagement.

Who is this for? This short COMeap conversion lead is designed for PC builders and upgraders who own an ATX3 or ATX3.1 compatible power supply with a 12VHPWR output and need to power one or more GPUs that accept dual 8-pin (6+2) PCIe plugs. It’s useful in compact or airflow-conscious builds where a minimal-length adapter makes cable management easier. If you require a modular replacement cable directly from the PSU manufacturer, or if your supply lacks a native 12VHPWR lead, choose the appropriate native cable or consult your PSU vendor before use.