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Black sleeved 10cm GPU power extension cable with 16-pin to dual 8-pin connectors and cable combs

Wilfly

Wilfly PCIE16P28-V5 ATX 3.1 16Pin to 2x8Pin GPU Extension Cable 10cm

SKU CH-Z2CN-84QMX

Converts two 8-pin PSU cables to a 12+4-pin ATX 3.1 connector for RTX 5090 graphics cards using 16AWG sleeved wiring

  • ColorBlack
  • Converts dual 8-pin power to ATX 3.1 16-pin for RTX 5090 compatibility
  • 16AWG UL1007 wires deliver stable power for 800W and higher PSUs
  • 10cm sleeved extension with combs keeps cable routing tidy
  • PCIe 5.0 design supports 32GT/s data link speed, double PCIe 4.0
  • No PSU replacement needed, works with existing 2x8-pin modular cables

ATX 3.1 16-pin GPU power adapter

This adapter converts two existing 8-pin PCIe cables into a single 12+4 pin connector compliant with the ATX 3.1 specification. It is intended for builders installing an RTX 5090 series graphics card without replacing their current power supply. The 10 cm length suits compact routing inside modern cases.

Check PSU connectors and cable routing

Verify that your power supply provides two separate 8-pin (6+2) PCIe outputs rated for the graphics card's power draw. The supplier recommends connecting each 8-pin plug directly to the PSU rather than using a daisy-chain cable. Ensure the 10 cm reach matches the distance between your PSU cable ends and the GPU socket.

16 AWG sleeved cable with wire combs

The extension uses 16 AWG conductors meeting the UL1007 standard, wrapped in a high-density flexible sleeve for durability. Included combs keep the individual wires aligned for a tidy appearance and consistent airflow. The short, stiff assembly resists sag and reduces strain on the graphics card's power connector during transport or vibration.

Highlights

  • Converts dual 8-pin power to ATX 3.1 16-pin for RTX 5090 compatibility
  • 16AWG UL1007 wires deliver stable power for 800W and higher PSUs
  • 10cm sleeved extension with combs keeps cable routing tidy
  • PCIe 5.0 design supports 32GT/s data link speed, double PCIe 4.0
  • No PSU replacement needed, works with existing 2x8-pin modular cables

Specifications

ColorBlack

Questions about this item

Does the 10 cm cable include the 2x 8-pin connectors for the PSU side or must they be purchased separately?

The extension cable has a 12+4 pin connector on the GPU end and two 8-pin (6+2) connectors on the PSU end, so nothing extra is required for the connection.

My PSU is 800 W; is the 16 AWG wire gauge on this extension sufficient for an RTX 5090?

Yes, the 16 AWG UL1007 wires are rated for 800 W and above, making the cable suitable for an RTX 5090 with an 800 W power supply.

The description mentions 32 GT/s data link speed; what does that mean for real-world GPU performance?

The 32 GT/s figure reflects the PCIe 5.0 signalling rate, which is double the PCIe 4.0 rate, ensuring no signal loss when the cable carries the high-bandwidth link to the graphics card.

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