Harmonic Listing 4x8 Pin to 12VHPWR Extension Cable – 16 Pin (12+4) Male to 4x8 Pin Female PCIe 5.0 Adapter, 600W 16AWG Short 3.94in (10cm) Sleeved Extender for RTX 5090/5080/4090/4080/4070 Ti/3090 Ti, 4 Connectors

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Overview

Product details

The latest PCIe 5.0 cable is applicable to the GPU RTX4090 RTX4080 series.
When the 8P female connector is connected to the power supply, the solid pin holder is used to replace the terminal wiring commonly used in the market, which can support higher load, thus ensuring the stability of the graphics card branch.
It is made of high-quality materials, heat-resistant, non-aging, and very durable.
Small and light, no space, long service life.

Type: Adapter Cable
Wire type: 18AWG
Product interface: 4 x 8 pin female head to 16 pin (12+4) male head
Product length: 10cm
Material: Tinned copper + PVC
color: Black

Package Contents:
1 x Cable

Highlights

• 🔹 CONVERT 16-PIN TO 4X 8-PIN – POWER YOUR RTX 40/50 SERIES GPU WITH OLDER PSUS – This extension cable converts your power supply‘s native 12VHPWR 16-pin (12+4) cable into four (4) standard 8-pin PCIe female connectors. Perfect for powering RTX 4090/4080/4070 Ti/3090 Ti and next-gen RTX 50 series (5090/5080/5070 Ti) when your PSU has a 12VHPWR output but your GPU requires multiple 8-pin connections, or when you need to split power to multiple devices. ⚠️ ALL FOUR 8-PIN CONNECTORS MUST BE CONNECTED – this is a 4x8-pin cable, not a 3x8-pin.
• 🔹 ULTRA-SHORT 3.94IN (10CM) LENGTH – PERFECT FOR TIGHT BUILDS – At just 3.94 inches (10cm) total length, this is one of the shortest 4x8-pin to 12VHPWR extension cables available. Ideal for ITX, small form factor (SFF), and compact builds where every millimeter counts. The short length naturally helps maintain the required straight approach to connectors, reducing cable clutter and improving airflow.
• 🔹 600W PCIe 5.0 POWER DELIVERY – 16AWG PREMIUM CONSTRUCTION – Built with high‑quality 16AWG tinned copper wire, capable of delivering up to 600W of stable power. Premium 12VHPWR connectors feature high‑current terminals rated for reliable power delivery. The black sleeved jacket provides a professional, abrasion‑resistant finish.
• 🔹 12V-2x6 COMPATIBLE – PCIe 5.1 & ATX 3.1 READY – Fully compatible with both 12VHPWR and the updated 12V-2x6 connector standard. The 12V-2x6 standard (PCIe CEM 5.1) features shorter sense pins that ensure full insertion before power is delivered – a critical safety improvement. Future‑proof your build for next‑gen GPUs.
• 🔹 EXTENSION CABLE – PLUG & PLAY WITH YOUR PSU‘S 12VHPWR CABLE – This is a Male to Female extension cable – simply plug your PSU‘s existing 12VHPWR cable into the 16-pin Male end, then connect your GPU‘s 8-pin PCIe cables to the 4x8-pin Female end. Works with ALL PSU brands that have a 12VHPWR/12V-2x6 output (for Corsair, EVGA, Seasonic, ASUS, Thermaltake, Cooler Master, etc.).
• 🔹 ⚠️ CRITICAL SAFETY RULES – MUST – 1) USE ALL FOUR 8‑PIN CONNECTORS – connecting fewer will result in insufficient power and may damage your GPU; 2) Fully seat all connectors – push straight and firmly until you hear a CLICK; 3) Verify NO GAP remains between any connector and its socket – incomplete insertion is the #1 cause of connector failure; 4) Do NOT bend cables sharply near connectors – maintain a straight approach; 5) Regularly inspect connectors for signs of melting or discoloration.

Shipping & Dispatch

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We typically dispatch items within 1-2 business days. Anticipate delivery in approximately 3-7 business days, dependent on your location.

P.O. Boxes or local pickups aren’t offered unless specifically noted.

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