ChenYang PCI-E 1x to 16x Mining Machine Enhanced Extender Riser Adapter with USB 3.0 & SATA Power Cable With 2x FP solid capacitors, making graphics power supply more stable and secure With SATA 15pin Male to 4pin power cable,strengthen power supply, so that graphics power from the motherboard independent,so multi-card reduce motherboard burden. PCI-E 16x slot with lock for easy removal and fixed graphics card , so that graphics will not fall from the slot Compatible with 1x,4x,8x,16x card