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12VHPWR to 3X 8Pin PCIe GPU Adaptor Cable, 18AWG Full Copper 12VHPWR Adapter 50+15+15cm for ATX 3.0 Modular PSU, Compatible with RTX 3090Ti 4070Ti 4080 4090 Graphics CardProduct Synopsis

Product Description Upgrade your PC power setup with our 12VHPWR to 3x 8Pin PCIe GPU Power Cable, the perfect solution for users with ATX 3.0 power supplies looking to connect traditional multi-8Pin high-end graphics cards.
Designed for reliability and performance, this cable features 18AWG full copper conductors that deliver ultra-low resistance and high current stability, supporting up to 600W of power output for flagship GPUs like the RTX 4090, RTX 3090Ti, and RX 7900 XTX. The 12Pin 12VHPWR input is fully compatible with all native ATX 3.0/PCIe 5.0 power supplies, while the 3x 8Pin (6+2Pin) outputs work with all legacy graphics cards with multiple power interfaces.
The flat ribbon cable design solves the biggest pain points of PC building: messy cables and poor airflow. Unlike bulky round cables, this flat design is flexible enough to route in tight spaces, tuck neatly behind your motherboard, and keep your case clean, while improving internal airflow to boost overall system cooling. With a 50cm main cable and 15cm branch cables, it fits perfectly in most mid-tower and full-tower PC cases, making it ideal for gaming rigs, workstations, and custom PC builds.
Safety is our top priority. This 12VHPWR adapter cable is built with safety-compliant full copper materials and features an anti-misplug design to prevent incorrect insertion and pin damage. Every cable is rigorously tested for long-term high-load use, ensuring stable power delivery without the risk of overheating or burnout.

Product Name: 12VHPWR to 3x 8-Pin PCIe GPU Adapter Cable, Black, 50+15+15 cm

Product Dimensions: (50+15+15) x 2.1 x 1.5 cm / (19.7+5.9+5.9) x 0.82 x 0.61 in

Connector 1: 12VHPWR 12-pin Male
Connector 2: ATX 8-pin Male

Color: Black

Safety & Usage Tips
1. 1.Only for Native 12VHPWR ATX 3.0 / PCIe 5.0 Power Supplies
This cable is designed exclusively for power supplies with a native 12Pin 12VHPWR output.
Do NOT use it with non-ATX 3.0 power supplies or reverse-connect it to standard 8Pin PCIe ports, as this may cause short circuits, overheating, or hardware damage.
2.Do Not Daisy-Chain or Overload
This cable supports power delivery for one single graphics card only.
Do not use it to power multiple GPUs simultaneously.
Ensure the total power draw of your GPU does not exceed the rated capacity of the 12VHPWR connector.
3.Correct Insertion Direction (Anti-Misplug Design)
The connectors feature a foolproof design.
Do not force the plug if it does not fit easily.
Ensure pins are aligned properly to avoid bending or breaking.
Fully insert the connector until it clicks into place for a secure connection.
4.Avoid Sharp Bends & Excessive Tension
Do not bend, twist, or pull the cable near the connector heads.
Sharp bending may damage internal copper wires, leading to voltage drop, instability, or overheating.
5.For Internal PC Use Only
This cable is intended for desktop computer internal use only.
Not for outdoor, industrial, or high-humidity environments.
6.Keep Away from Heat Sources & Sharp Edges
Route the cable away from fans, radiators, sharp metal edges, and other heat-generating components to prevent insulation wear or melting.
7.Check Compatibility Before Installation
Confirm your GPU uses standard 8Pin (6+2Pin) PCIe power ports.
This cable is not compatible with 12VHPWR-only GPUs (such as RTX 4090 FE with no 8Pin ports).
8.Unplug Power Before Installation
Always turn off and unplug your power supply before installing or removing the cable to avoid electric shock or short circuits.
9.Do Not Modify or Splice the Cable
Any cutting, splicing, or modification will void compatibility and safety, and may result in device damage.
10.Stop Use Immediately if Abnormalities Occur
If you notice overheating, burning smells, loose connections, or system instability, disconnect the cable immediately and discontinue use.

Package Contents: 1 x 12VHPWR to 3x 8-Pin PCIe GPU Adapter Cable, Black, 50+15+15 cm

Unique Attributes

• 1. 【Premium 18AWG Full Copper for Stable High-Current Power Delivery】 Crafted with 18AWG pure copper conductors, this 12VHPWR to 3x 8pin cable delivers ultra-low resistance and high current-carrying capacity, ensuring stable 12V power transmission for high-end graphics cards under full load. Effectively reduces voltage drop and overheating, eliminating the risk of system shutdown or hardware damage caused by poor power supply.
• 2. 【12VHPWR to 3x 8Pin Design for Multi-Interface Graphics Cards】 One 16Pin ATX 3.0/PCIe 5.0 12VHPWR input converts to 3 PCIe 8Pin (6+2Pin) outputs, perfectly compatible with graphics cards with multiple 8Pin power interfaces (such as RTX 3090Ti, RTX 4070Ti, RTX 4080, RTX 4090, AMD RX 7900 XTX). Eliminates the need for multiple separate cables, simplifying your PC build.
• 3. 【Flat Ribbon Cable for Effortless Cable Management & Better Airflow】 Featuring a black flat ribbon design, this 12VHPWR adapter cable is far more flexible than round cables, making it easy to route in tight case spaces. It neatly tucks away behind the motherboard, improves internal airflow, and keeps your gaming PC build clean and organized, optimizing overall system cooling.
• 4. 【Wide Compatibility with ATX 3.0 Power Supplies & GPUs】 Fully compatible with all native 16Pin 12VHPWR ATX 3.0/PCIe 5.0 power supplies, and works with all NVIDIA RTX 30/40 series and AMD RX 6000/7000 series graphics cards with 8Pin (6+2Pin) power ports. The 50cm main cable + 15cm branch cable length fits most mid-tower and full-tower PC cases, meeting the needs of most gaming and workstation builds.
• 5. 【Safety-Compliant Construction with Anti-Misplug Design】 Built with safety-certified full copper conductors and secure, durable connectors, this 12VHPWR to 8pin cable features a foolproof anti-misplug design to prevent wrong insertion and pin damage. Strictly tested for long-term high-load use, it provides a reliable and safe power solution for your high-performance PC, with no risk of burnout.

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