Y power cable 2x USB A to Mini USB 5pin, black (used for 2,5" (6,35cm) HDD ect.) 1m
2x USB A connector at Mini USB B connector. For use of an additional power supply of USB devices (e. g. 2,5" (6,35 cm) HD Drive with Mini USB socket, that requests up to 1A.). Connection at 2 free USB Ports of a PCs required.