So I bought a Phanteks kit which included a 24 pin motherboard, 2 8 pin GPUs and an 8 pin CPU extension(s). However, my motherboard (MSI X99 chipset) uses both 8 pins and an additional 4 pin to power the CPU. I ordered this 8 pin extension cord and it fits the full set.
Comprehensive 500pcs Laptop Screw Kit Set for π© IBM HP Dell Lenovo Samsung Sony Toshiba Gateway Acer
12 Review
36-Pack Black Rubber PC CPU/Case Fan Screws/Rivets Set for Computer
11 Review
M.2 Screw Kit: Easy Mounting for NVMe SSDs on ASUS Motherboards
19 Review
uxcell 3.5" HDD Screw Black 200pcs for Computer PC Case - Flat Phillips Head - 6#-32 - Hard Drive Fasteners
10 Review