High frequency impedance PCB board design. High-precision machine-welded 4-layer PCB gold plating, good transmission stability, good electrical conductivity, and good electrical performance. Plug and play. Ensure that the signal is stable at full speed without attenuation.Plug and play, no jumper settings required. No driver software program required.PCI-Express 8X Riser Card does not support hot swap. Freely install PCI-E devices according to the location and size of your 1U/2U serverExperienced design and durable materials for high frequencies and low attenuation.Easy to install in 1U/2U chassis at any angle, convenient and fast. Perfect for small computers and server cases. Due to the small size of the chassis and limited space, when we need an external PCI-E 8X riser card, it is not high enough to directly insert the motherboard. In this case, we can use this riser card, which greatly improves our understanding of space. use. This also meets the requirements of a computer case.Colour: Black+GreenMaterial: PCBPackage Contents:1 * PCI-Express 8X Riser CardOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.