PCIE x16 to x8andx4andx4 splitter adapter card, front and back double sides M.2 NVME x2 designed.This product can run 2 NVMEs simultaneously, but only if the motherboard supports PCIE signal splitting.Supports PCIE 4.0, strong compatibility and downward compatible with 3.0, stable operation.Product front and back M.2 can connect to NVME 5 kinds specifications of SSD, PCIE X16 can connect to PCIE expansion card, adapter card.Front and back M.2 can connect to NVME SATA expansion and M.2 NVME SFF-8639 card.Name: pcie x16 to x8andx4andx4 splitter adapter cardModel: PH43Input Port: PCIE X16, M.2 NVME x2Speed: PCIE 4.0, downward compatible with 3.0Colour:blackMaterial:plasticPackage Contents:1 x PCIE Expansion Riser CardOnly 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.