EDSFF 4C+ to PCIe5.0 x16 Adapter Card, Supports PCIe 5.0 X16 and is compatible with for Gen3/Gen4/Gen5. The R73B is designed with a DCDC module to stable operating voltage under load conditions. The gold - finger adopts gold - plating technology with thickness of up to 10U. The PCB board is made of high - frequency, low - resistance, high - temperature - , and anti - oxidation material, which is non - deformable, with a yellow - crystal - like semi - transparent color, and not turn white or black. The printing/appearance from batch to batch, but it not affect the use; the actual product may have color difference due to different light or display. Colour:Black Material:PCB Package Contents: 1 x EDSFF 4C+ to PCIe5.0 x16 Adapter Card Only the above package content, other products are not included. Note: Light reflection 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.