NWME high speed riser card: M.2 to PCI-E X1 riser cardFunction: LED indicator, thickened PCB, Pcie4.0 backward compatible with 0Heat dissipation, high speed operation: large heat dissipation area, heat dissipation effect, and improve the stability of the hard diskSupport Pcie X1 X4 X8 X16 interface: Support Pcie x1 X4 X8 X16 motherboard card slot, computer expansionSupport 4 specifications: Compatible with 2230/2242/2260/2280 long and short four specifications M.2 protocol hard disk, M key, B&M keySpecification:Product Name: PCi-E to M2 Riser CardMaterial: metal baffle + environmentally glass fiberSupport hard disk: M Key hard diskTransmission rate: 32gbpsCard slot: X1/X4/X8/X16Product PCiE: No additional power supply requiredSupport system: for Windows// for LinuxIndicator light :long on when powered on, flashing when reading and writingSize Chart:9.6cmx5.5cm/78inchx2.17inchPackage Includes:1 Riser expansion card(3 Pack)