PCI-E4.0RAID 0 mode The read rate can reach 14000+Mb/S. with 2242/2260/2280/22110 specifications.Support M.2 M-KEY NVME protocol SSD and Optane.Expansion cards and devices support the M.2PCle protocol.LED soft light indicator When the disk is plugged in and powered on, the green light is on, and the green light flashes when reading and writing.Type: Double-sided 4-disk NVME RAID PCI-EX16 split card: PH44PR0Support hard disk: SSD/M.2PCI-E device with M.2 NVME protocolTransmission speed: 4*32GbpsType: Riser CardData transfer speed: 14000 (MB/s)Feature 1: Double-sided 4-disk NVME RAID PCI-EX16 split cardFeature 2: PCIE X16 to M.2 M-key NVME riser cardcolor:BlackMaterial:PCBPackage Contents:1 x Riser Card1 x Screwdriver1 x Case Screw4 x Lock Plate Screw4 x Mobile Stud1 x Full Height Baffle1 x Half-Height BaffleOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.