6-pin PCIe power extender cables

Note: this post focuses on the dilemma of extending 6-pin PCI cables, not splitting!

If you’re building a mining rig with the 6-pin PCIe risers, then you’re probably going to need an extender to connect both the GPU & riser off a single cable with 2x 6-pin connectors from the power supply.

Most of the 6-pin power cables included with premium power supplies have lengthy cables and they usually split into 2x 6-pin or 1x 8-pin + 1x 6-pin connectors at the end:

6-pin PCIe Cable
PCIe power cable cable splits into 2x 6/8-pin PCIe connectors

You can see from the above pic, that cable splits into 2x 6-pin connectors. This makes sense, since some graphics cards have 2x 6-pin connectors.

It’s also worth mentioning that the length of the cable between each 6/8-pin connector is relatively short – usually the power connectors are together on the GPU:

GPU with PCIe connectors
GPU with 2x 6-pin PCIe connectors

Riser card power dilemma

When you start building your rig and decide perhaps, “I’ll use 1x 6-pin connector for the GPU and 1x 6-pin for the riser card” – that is where you will run into problems.

The cable is too short to connect to both the GPU and riser card off a single split cable- it just won’t stretch:

6-pin riser cable too short
Outlined in red is the split 6-pin cable.. It can’t stretch to power the riser¬†

Extender to the rescue

Oulined in yellow is the extender cable to power the riser

Not only does the extender cable make it easy to power riser and GPU off a single power supply cable, it also enables flexibility when connecting risers and GPU.

The example below; a single PCIe power cable was used from the power supply (that splits into 2x 6-pin connectors), and then an extender was added so the split 6-pin cable could be connected to the riser sitting above the GPU below – this connection wouldn’t have been made possible without the extender.

1st Mining Rig

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