M key M.2 NGFF SSD to PCI-E X4 adapter or B key M.2 NGFF SSD to SATA adapter.Support size: 22X30 mm, 22X42 mm, 22X60 mm, 22X80 mm M.2 NGFF SSD.Support system: /7/8/10, Linux, for MacOS.With cooling holes to air circulation.Parameter:Type: M.2 NVMe NGFF SSD to PCIE SATA AdapterInternal Interface: M Key ,B Key, B+M KeyTransmission speed: 32Gbps (NVME) , 6Gbps (NGFF)Support Slots: PCI-E 3.0 X4 GEN3 (Compatible with X4 X8 X16 slot)Support Devices: PCI-E specification m.2 NVMe and SATA specification M.2 NGFF diskSupport System: for /7/8/10, Linux, for MACOS.Colour:blackMaterial:PCBPackage Contents:1 X riser card1 X full-height bezel1 X half-height bezel1 X SATA cable1 X screwdrive1 set X screw studs (pictured above)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.