Graphics card power adapter GameMax GAMEMAX VGA 3x8pin-B – 3×8-pin PCIe power splitter

GameMax GAMEMAX VGA 3x8pin-B is a PCIe power splitter adapter that converts a single power feed into three 8‑pin (6+2) PCIe connectors. With a 300 mm cable length and standard 8‑pin PCIe plugs, this adapter allows one PSU connector to supply multiple graphics cards or other PCIe-powered components where additional dedicated PSU PCIe outputs are not available.

Advantages

The adapter maintains standard 8‑pin (6+2) PCIe connector compatibility, enabling connection to contemporary GPUs and expansion cards. Its single-to-three split design reduces the need to change the power supply or add separate cables, while the 300 mm cable length provides flexible routing inside ATX and larger chassis. The product is compact and intended for simple installation without modifying existing PSU wiring.

Suitable for

• Systems that require powering multiple graphics cards from one PSU connector
• Upgrading or testing GPUs in rigs with limited PCIe power outputs
• Temporary GPU setups, mining testbeds, or workstation configurations with constrained cable availability

Key specifications

• Connector type: one input to three 8‑pin (6+2) PCIe outputs
• Cable length: 300 mm
• Compatibility: standard 8‑pin PCIe (6+2) powered graphics cards and PCIe devices
• Design: single cable split for power distribution to multiple PCIe connectors

How to use

Connect the adapter’s single input to an available PSU PCIe power output, ensuring the connector is fully seated and the latch clicks into place. Route the three 8‑pin outputs to the target graphics card power sockets, aligning the 6+2 pins correctly with the card’s connector. Power on the system and verify that the GPU(s) receive power and that the PSU is operating within its rated capacity.

Usage recommendations

Use this adapter only with power supplies capable of delivering sufficient current for all connected GPUs or PCIe devices. Avoid connecting more devices than the PSU or single cable is rated for, and consult PSU specifications to prevent overload. For long-term multi‑GPU installations, prefer PSUs with native multiple PCIe outputs or dedicated cabling.