Expand USB3.2A port and TYPE-C port The front expansion has four Gigabit network ports, which allows for quick expansion and easy use PCI-E X4 interface As long as the motherboard has a PCI Express X4/X8/X16 slot, it can be easily expanded. It is plug-and-play, convenient and fast Thick gold-plated gold fingers Gold-plated gold fingers and slot connections data transmission integrity and stable operation Hign-concerned Chemical:None Type:PCI-E Riser (The product appearance and printed words depending on the batch, but this does not affect use) Color:As Shown Material:PCB Package Contents: 1 * PCI-E Riser 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.