GPU Riser card allows for increased space for GPU’s, and allows GPU’s to be spaced apart for optimal cooling. About 2 foot cable extension with USB 3.0 connectors. This riser should be powered by a PCIe Power connector. If you looking for a riser powered via SATA check out our other product SATA Riser Card. This riser is also different from the SATA risers in that is runs off of 12v power only. No need for 5V power that the SATA riser cards needs. This helps if you are using a non-NSM breakout board on a server PSU.