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Black 8-pin female to dual 6+2-pin male power splitter cable, 20cm 18 AWG

JacobsParts Inc.

JacobsParts Inc. PCIEPWR-K 8-pin to 2x 6+2-pin 18 AWG 20cm

SKU CH-5117-K4TWR

Splits one 8-pin PCIe connector into two 6+2-pin plugs using 18 AWG copper wire over 20 cm length

  • Connector genderMale
  • Product typeCable
  • Overall length8 in (20.3 cm)
  • Splits one 8-pin connector into two 6+2-pin plugs
  • 18 AWG copper wire carries up to 300W safely
  • 20 cm length keeps cable routing tidy
  • Male 6+2-pin ends fit both 6-pin and 8-pin graphics cards
  • Female 8-pin end plugs directly into power supply

Splitter for single 8-pin sources

This cable splits one 8-pin PCIe power connector into two 6+2-pin male plugs. It lets a graphics card that needs dual power inputs draw from a single port on the power supply. The 20 cm length suits compact builds where excess cable would block airflow.

18 AWG wire and 300 W limit

The 18 AWG copper conductors handle typical mid-range cards within the 300 W safety ceiling for a single 6-pin source. Running two high-draw GPUs or a single card that exceeds this limit risks overheating the wire and the source connector. Check your card’s total board power before connecting both branches.

Fixed length and connector gender

The 20 cm reach restricts routing options in larger chassis or when the power supply sits far from the graphics card. The male 6+2-pin ends plug directly into the card, so no extra adapters are needed, but the short pigtail cannot be extended without adding another junction. Builders needing longer runs should plan cable management accordingly.

How it compares

Measured against everything we stock in PC Power Cables, at today’s prices. Recalculated every night.

Price $5.99
Cheaper than about 92% of the 1,029 comparable items (median $15.99).

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Specifications

Product
Brand nameJacobsPartss
Model namePCIEPWR-K
Product typeCable
Ports & slots
Connector genderMale
Size & build
Overall length8 in (20.3 cm)

Questions about this item

Will the 8-inch 18 AWG splitter reach a second GPU slot on an older motherboard?

The cable is 20 cm long, so measure from your PSU 8-pin port to the farthest graphics-card connector; if the gap exceeds 20 cm you will need a longer lead.

How can I confirm the 6+2-pin ends are delivering power to my card after installation?

Power on the system and verify the GPU fans spin and the board posts; if the card shows no life, reseat both 6+2-pin plugs and check the PSU 8-pin source connection.

Does the package include any extra 6-pin adapters or mounting ties?

Only the 8-pin female to dual 6+2-pin male splitter is supplied; no additional adapters or cable ties are included.

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