Features: brand new and high quality Bottom cooling hole design, equipped with non-slip silicone pad, more stable for the desktop External expansion read-write backup, convert to double-disk for M.2 hard disk in seconds. Plug and for play, no driver needed, hot-swapping, easy and quick, aluminum for case makes it durable and resistant soiling. Supports for M.2 SATA / NVMe dual protocol solid state drive.Supports standard 7.0 / 7.1 SD and SD for Express cards. Vertical open design, more convenient to plug and unplug.Variety of applicable hard disk size specifications: 2230/2242/2260/2280/22110 Specifications: Material：Aluminum Alloy Size：approx 102x66x13mm/4.01x2.6.x0.51in Applicable: for M.2 SATA NVME 2230/2242/2260/2280/22110 Output interface:USB3.1 Capacity:Support 4TB Speed: 10GBbps/6Gbps Support Interface: USB3.1 TO for M.2 NVME M-KEY / USB3.1 TO for M.2 NGF B-KEY Syetem：WinXP/7/8/10/Mac- OS/Linux Plug: US Standard 5V 2A Package Includes: 1 x SSD Base Enclosure note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.