The latest version 009S riser kits with gold plated contacts for setting up GPU mining rigs. 4 high quality solid capacitors for stable and safe power delivery, protecting your GPU and securing your investment. 23.6-inch USB 3.0 for flexible Graphic card connectivity. Two 6-PIN interfaces (directing differently) and one 4-PIN interface strengthen power delivery, providing Graphic card independent power and reduces motherboard burden when using more Graphic cards. This riser kit is compatible with 1x, 4x, 8x, 16x PCI-E slot of the motherboard. Suitable for all Window, LINUX and MAC systems. 100% full inspection, almost no defective products Excellent choice for mining rigs. Buy with 30 days warranty.