Review on Power supply be quiet! System Power 9 600W by Micha Jakubek ᠌

Cable management will not be simple because the braid and the wires themselves are not flexible. Moreover, keep in mind that the braid length for PCI 6 + 2 is the same, so if you have a row of video cards and the power supply is not in the middle, you will require extension cables. There may be issues connecting two video cards to one braid due to the limited (10 cm) distance between the PCI 6 + 2 pins on the braid and their poor bending characteristics.