1. It allows you to install the pcie-nvme u.2 2.5 inch ssd drive to the computer system through the thin pcie 4.0x4 card. 2. compatible with game lovers and workstation market, this is the best and simple solution to install pcie-nvme u.2 ssd on desktop 3. Convert u.2 2.5 inch pcie-nvme ssd to work on motherboard pcie x4 bus slot. 4. Support pcie 4.0 and pcie 3.0 motherboards. 5. It is transparent to the operating system and does not require a driver.Product name: PCI-E 4X riser cardType: PCI-E riser cardProduct interface: SFF-8643/PCI-E 4X interfaceSupport system: Window7/8/10/MAC/ Linux Colour:red Material:PCB+metal Size:120 x 90 x 37mm Package Contents:1 x PCI-E 4X riser card Only the above package content, other products are not included.Note: Light shooting 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.