It also allows you to connect your image card to any 1x, 2x, 4x, 8x and 16x PCI-E slots to make use of those slots you would not normally be able to use.
By connecting your image card to the riser then to the power supply via a molex connector, you take the strain off the motherboard and prolong its life.
These are the long, 60cm USB 3.0 cable models which will give you that extra stretch over the shorter cables enabling you to fit more GPUs on a rig.They also include a Molex power connector to reduce
stress on the motherboards power and load balancing capacitors to provide a smooth stable voltage to your image cards.
Package Contents: 6 * \"PCI-E *16\" card with USB 3.0 port and Molex connector 6 * \"PCI-E *1\" riser with USB 3.0 port 6 * 60 cm USB 3.0 Cable 6 * SATA to Molex Power Cable