Description

This harness adapts legacy modular PSUs to graphics cards that require the 16‑pin (12+4) 12VHPWR input. The GPU side uses a straight 16‑pin male plug with secure latch; the PSU side provides three PCIe 8‑pin (6+2) female sockets to accept standard PCIe GPU leads from the power supply. The short, sleeved pigtail keeps routing tidy while moving the bend radius away from the card’s connector. Typical deployments include powering RTX‑class accelerators in workstations or gaming towers when the power supply lacks a native 12VHPWR cable. This is not a right‑angle or 8‑pin‑to‑8‑pin adapter.

Built by Farsince with high‑strand 16 AWG copper and low‑resistance crimps, the assembly supports the current levels specified by ATX 3.0/PCIe 5.0 when used with adequate PSUs and three independent PCIe outputs. Integrated sense lines communicate the permitted power level to the GPU for stable operation. For installation, use three separate PCIe cables from the PSU (do not mix with CPU/EPS 8‑pin), fully seat all connectors until latched, and avoid tight bends near the 16‑pin housing. Custom options include length, sleeving color and sense‑pin mapping for 450 W or 600 W profiles.

Specifications

• Product Type: 12VHPWR (12+4) GPU power adapter harness
• GPU Interface: 16‑pin 12VHPWR male, straight plug
• PSU Interface: 3× PCIe 8‑pin (6+2) female sockets
• Cable Direction: PSU to GPU adaptation
• Application: Use modular ATX PSUs to power 12VHPWR GPUs
• Wire Gauge: 16 AWG high‑strand copper conductors
• Power Design: Supports up to 600 W with compliant PSU and three PCIe feeds
• Sense Lines: Implemented 4‑pin sense for ATX 3.0/PCIe 5.0 negotiation
• Cable Structure: Braided sleeving, heat‑shrink transitions, molded housings
• Installation: Use three separate PCIe leads; fully latch; avoid sharp bends
• Compatibility: GPUs with 12VHPWR input; PSUs with PCIe 8‑pin outputs; not for EPS12V CPU connectors
• Operating Voltage: 12 V DC rail
• Compliance: RoHS, REACH
• Customization: Length, sleeving color, labeling, sense‑pin configuration