Features: Portable mini removable hard disk cartridge with hole, designed as U disk, suitable for m.2(NGFF/ NVME/ NGFF&NVME) SSD. Standard USB3.0 transmission, downward compatible with USB2.0 and supports transmission rate up to 5Gbps. Support Windows2000/XP/2003/Vista/7/8, Linux, Mac10.0 OS. Plug and use, support hot plug, with working power indicator. Magnetic USB port protective cover perfectly fits the hard disk cases. Specifications: Material: Metal Size: Approx. 120x25.5x10mm/4.72x1.00x0.39inch Model: SATA-NGFF, NVME, NGFF & NVME Dual Protocols (optional) Working Voltage: DC5V Supported SSD Size: 22x30, 22x42, 22x60, 22x80 Support m.2 keyB, B+M Type (SATAprotocol)/M-KEY (NVME protocol) Chip: SATA-NGFF protocol: ASM1153E main control, 6Gbps NVME protocol: JMS583 master-control, 10Gbps Dual protocols: RTL9210B, NGFF 6Gbps, NVME 10Gbps Package Includes: 1x SSD Enclosure note: Please allow 0-1cm error due to manual measurement, make sure you do not mind before you order. Please allow slight chromatic aberration due to different display resolutions.