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