It features high frequency and low attenuation.This high-speed flexible cable is for 1U/2U chassis.The adapter is made from premium material with a dust-proof cap and a protection cover.It can provide the stable transmission with a speed of PCI-E Gen3 8Gbps or higher.Item Name: PCI-E 8X Riser CardMaterial: PCBSupported Type: PCI-E 1X/4X/8X/16X Cards (Not Included)Features: Fine Workmanship, Extender, Easy to InstallSize (without Cover): 200mm x 96mm x 17mm/7.87" x 3.78" x 0.67" (Approx.)Total Length: 24cm/9.45" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x PCI-E 8X Riser Card