Product description ipolex PCIe Riser Card RS44SR-2 (210) Add to Cart RSC-RR1U-E8 Add to Cart RSC-RR1U-E16R Add to Cart RSC-RR1U-E16 Buying Options RS44SR-1 (305) Buying Options Price $ 12.99 $12. 99 $ 13.09 $13. 09 $ 11.09 $11. 09 Interface PCIe x16 PCIe x8 PCIe x16 PCIe x16 PCIe x16 Output Type (2x) PCIe x16 PCIe x8 PCIe x16 PCIe x16 PCIe x16 Connecting Finger 15 15 15 15 15 PCB size (mm) 119 * 51 161 * 31.5 106 * 26 161 * 31.5 119 * 39.5 Gen2 Yes Yes, depending on MB Yes Yes, depending on MB Yes Gen3 Yes Yes, depending on MB Yes Yes, depending on MB Yes Gen4 No No No No No Chassis 2U 1U 1U 1U 2U PCIe 3.0 Riser Card