Monoprice BX0019-1183X CPU 8 Pin Female to Dual PCIe 8 Pin (6+2) Male Splitter Cable 23cm 2-Pack

Splitter for dual graphics cards

This Monoprice BX0019-1183X splitter cable adapts a single CPU 8-pin female connector from the power supply into two PCIe 8-pin (6+2) male connectors for graphics cards. It is intended for builders adding a second GPU to a system that only provides one CPU power lead. The two-pack supplies a spare cable for a second build or replacement.

Practical limits of the CPU-to-PCIe interface

The cable draws auxiliary power from the CPU 8-pin rail, so total graphics power is capped by that rail and the 18 AWG conductors rated for 57 volts. It cannot deliver the full current of a dedicated PCIe power cable, making it unsuitable for high-wattage cards or multi-GPU mining rigs. Using it on a motherboard header instead of a GPU will cause damage.

23 cm length and 18 AWG gauge

At 23 cm including connectors, the cable only reaches components close to the power supply, limiting routing options in larger cases. The 18 AWG wire sets the safe current ceiling, so buyers must verify their graphics cards stay within that limit before purchasing.