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White 12+4pin to triple 8pin ATX 3.0 PCI-E 5.0 extension cable kit

BUCIER

BUCIER 12+4pin 3×8PIN ATX 3.0 PCI-E 5.0 Extension Kit White

SKU CH-SEGE-4RV0R

White extension kit converts a 12+4 pin connector to three 8-pin plugs for ATX 3.0 and PCI-E 5.0 graphics cards with a three-layer braid rated above 600 W

  • ColorWhite
  • Compatible with 3090 Ti and 40 series GPUs
  • Three-layer braided design withstands higher current
  • Maximum power delivery exceeds 600 W
  • ATX 3.0 and PCI-E 5.0 extension kit

ATX 3.0 PCI-E 5.0 Extension Kit

This white extension kit converts a native 12+4 pin connector into three standard 8-pin PCIe plugs. It supports ATX 3.0 and PCI-E 5.0 power delivery for modern graphics cards. The three-layer braided sleeving is rated for currents exceeding 600W.

Upgrades from native 12+4 pin PSU cables

The kit replaces a single 12VHPWR cable when your power supply lacks enough native 8-pin outputs for a high-end GPU. It is not for builders whose PSU already provides sufficient 8-pin connectors or who need a direct 12+4 pin to 12+4 pin link.

Highlights

  • Compatible with 3090 Ti and 40 series GPUs
  • Three-layer braided design withstands higher current
  • Maximum power delivery exceeds 600 W
  • ATX 3.0 and PCI-E 5.0 extension kit

Specifications

ColorWhite

Questions about this item

What length and connector spacing do I need inside my case for this 12+4pin to three 8pin extension kit?

The kit converts one 12+4pin header into three 8pin plugs, so measure from your PSU 12VHPWR port to each GPU 8pin socket and allow slack for cable routing behind the motherboard tray.

Which step do builders often skip when fitting the three-layer braided cables?

Fully seat every 8pin latch until it clicks and verify the 12+4pin lock engages; loose pins on high-current lines can exceed the 600W rating and cause shutdowns.

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