Review on 💡 COMeap (2-Pack) NVIDIA Graphics Card Power Cable - 030-0571-000 CPU 8 Pin Male to Dual PCIe 8 Pin Female Adapter for Tesla K80/M40/M60/P40/P100 - 4-inch (10cm) by Mike Wallace

I have the Tesla K80 version, just wish I needed it as the other wires from my power supply don't quite fit. The standard PCIe 6+2 connector has an off-center latch that doesn't match the K80, and another cable I've found has two pin housings with an extra wall in between, or others have the +2 pins upside down. It worked! However, a bit pricey for what you get.