Features :Connects NGFF B Key SSD safely to computer via USB port. Compliant with PCI Express M.2 specification 1.0. Compliant with SATA 3.0 specification. Compliant with USB 3.0 specification. Transfer Rates Up to 5 Gbps when connected to a USB 3.0 port. Transfer Rates Up to 480 Mbps when connected to a USB 2.0 port. Supports SATA-based B Key NGFF SSD. Applicable SSD hard drive: support 22mm * 30mm / 42mm / 60mm /80 mm NGFF (M.2) Interface SSD hard drive. Easy installation & no driver required. No additional power required. Support boot function. Supports Plug & Play and Hot-Swapping. Support System: Windows xp / Vista / Windows7 / 8 / 8.1 / Linux / MAC Free drive with USB. Note:It supports SATA-based B Key SSD only. It does NOT support PCI-E based B key & any M key SSD. Package included:4X Screw.1x Screw Drivers.1X USB 3.0 to NGFF M.2 B Key SSD Enclosure. (SSD card is not included).1x set of Screw for small(30 / 42 / 60mm) size SSD.(SSD card is not included). NO Retail Box. Packed Safely in Bubble Bag.