The dual splitter cable allows you to take one 8 pin PCIe power cable and convert it to dual 8 Pin (6+20) connectors.
This is used with server PSU for your mining rigs. Split off one 8 pin to 2x 8 pin (6+2 pin) ;connections for powering extra GPUs.
Female 8 pin PCIe adapter
Dual 6+2 pin (8 pin) PCIe adapters
Length 250m / 10 inches
This is used for providing PCI-e power to video cards or PCI-e risers.