GPU Power Connector Checker
Which power cables your graphics card needs.
Select a GPU to see its power connector requirement, estimated board power, a recommended PSU range, whether an ATX 3.x unit makes sense, and the cable safety notes that actually matter.
Connector requirement
Results are estimates for planning — not electrical, engineering, or purchasing advice. Verify against official manufacturer specifications.
This entry uses sample data that has not been re-verified. Confirm connector and power figures on the vendor's official page before purchase.
Power connector
1x 16-pin 12V-2x6 (12VHPWR-compatible)
Estimated board power
250 W
Vendor-published TGP/TBP — a conservative ceiling, not typical gaming draw.
Recommended PSU range
550 W minimum - 650 W comfortable
Assumes a typical companion system (125 W-class CPU + standard ATX accessories). Use the PSU Calculator for your exact parts.
Vendor-recommended PSU
650 W
The wattage the GPU vendor lists for this card — deliberately conservative to cover weak PSUs and heavy CPUs.
ATX 3.x advice
An ATX 3.1 (or ATX 3.0) power supply with a native 12V-2x6 / 16-pin cable is strongly recommended for this card. It avoids adapters entirely and is specified for modern GPU power excursions.
Cable safety notes
- Seat the 16-pin connector fully until it clicks, and avoid tight cable bends within ~35 mm of the plug. Partially seated 16-pin connectors are the classic cause of melted plugs.
- Use the native PSU cable or the adapter supplied with the card. Never chain third-party adapters or extensions on a 16-pin connection.
- Never mix modular cables between different PSU brands or models. The PSU-side pinout is not standardized — a mismatched cable can destroy hardware.
- Do not exceed a cable's rated load with splitters or adapters, and replace any cable with damaged or discolored connectors.
- Before buying, confirm the connector layout and PSU guidance on the official pages of both your exact card model and your PSU — board partners change designs between variants.
Methodology — Results are estimates for planning — not electrical, engineering, or purchasing advice. Verify against official manufacturer specifications.
Frequently asked questions
How do I know which power connector my GPU needs?
Select your card to see its typical connector type and count — for example a single PCIe 8-pin, two 8-pins, or a 16-pin 12V-2x6. Because board partners change designs between variants, always confirm against the official spec page for your exact card model before buying cables or a PSU.
Do I need an ATX 3.0 or ATX 3.1 power supply?
It depends on the card. Cards with a 16-pin 12V-2x6 input are cleanest on an ATX 3.x unit with a native cable. Cards using classic 8-pin connectors work on any competent modern PSU. The tool tells you which situation applies to your selection.
What is the 12VHPWR / 12V-2x6 connector and is it safe?
It is a compact 16-pin connector that carries up to about 600 W for modern high-end GPUs. It is safe when used correctly: seat it fully until it clicks, avoid sharp bends right at the plug, and do not use damaged or heavily adapted cables. 12V-2x6 is the revised, more robust version of the earlier 12VHPWR design.
Can I use adapters or split cables for GPU power?
Use the cable that came with your PSU or the adapter supplied with the card, and prefer separate PSU cables for each connector on high-power cards rather than a single daisy-chained cable. Avoid stacking third-party adapters, and never exceed a cable's rated load.