UGREEN M.2 PCIe Adapter: 1.PCIe 4.0 (16X physical size, 4X bandwidth), 64Gbps transfer speed. 2.Supports M-Key and M&B-Key NVMe/AHCI SSD above 2TB. 3.Supports size 2280/2260/2242/2230 NVMe/AHCI SSD above 2TB. 4.Supports PCIe 4.0/3.0/2.0/1.0 motherboard and PCIe X16/X8/X4 slot. 5.Supports Windows 7/8/10, Linux, Mac OS 9/10. 6.LED indicates power and data transfer status. NOTE: This PCIe NVMe adapter is designed for M-Key and M&B-Key NVMe/AHCI SSD, it is not support SATA/NGFF SSD. Safe and stable transmission:Built with short-circuit, over-current, over-voltage, EMI and multi protection to ensure safety for your SSD and valuable data. Sufficient heat disspation:The Heat Sink is design for better heat dissipation, come with 2 silicone pads to enhance heat dissipation of SSD. LED indicator:LED indicates power and data transfer status, the white LED light will flash when it is reading and writing. Compatible brand and models (List only part of them): ✔ Samsung 950PRO/960EVO/PM951/PM961/SM951/SM961/970EVO/970PRO/980PRO. ✔ Intel Optane SSD 800P Series, Intel SSD 760p Series, Intel SSD 660p Series, Intel SSD 600p Series. ✔ WD SN 750/Toshiba OCZ RD400/Plextor M8PEG M6E/Kingston KC1000. Package list:1×M.2 NVMe to PCIe adapter with Heat Sink,2×silicone heat dissipation pad,4× Screws,1×screwdriver,1×User Manual.