I'm using a modular Sparkle Power / " Canon 2000W " (FSP2000-52AGPBI), and to keep a long story short I need more 6+2 PCIe cables for it.

The system has multiple NVidia A6000 GPUs, which are 300W cards. I've been using each with a single 6+2 cable that came with the PSU. Well, apparently those types of cables are only rated for 150W load, so I've kept the GPUs power-capped to ensure the system stays on.

We want to run the A6000s at full speed, and for that we need TWO 6+2 cables for each GPU. We don't have that many. While the PSU has more than enough PCIe connections, I don't think it came with enough cables.

I know modular PSU cables are not all compatible with each other, so I don't want to just buy some random cables to do trial and error.

Are there some modular PCIe cables that are more common than others? I've searched Amazon for Sparkle / FSP / Canon PSU cables, and haven't had any luck. I don't want to buy a entirely new PSU just to get more cables.