Using USB3.0 cable as extender cable, more safer,more efficient,more practical. Using 4pin IDE to get external power,more powerful,and reduce the burden of the motherboard. Using three FP solid capacitors to supply power for Graphic card, more safe and stable. Compatible with 1x,4x,8x,16x PCI-E slot of the motherboard. With side clip to fasten other card. No driver necessary Weight: about 100g IDE Power cable length: 28cm USB3.0 Cable Length: 50cm