brand new and high quality Instructions: 1. Open the front cover and draw the side strips. 2. Install hard disk insert into the enclosure. 3. Lock hard disk screws. 4. Remove the another cover and insert the side strips, then close the cover. 5. Lock hard disk enclosure screws. Features: Premium metal material ensures maximum strength and durability for long lasting usage. Easily connect your 3.5-inch hard drive to a PC, laptop, and other device for data transfer. Protects the hard disk from outside scratches and makes sata hard disk drive portable for data store. Backwards for USB1.1 peripheral devices. Plug and for play with tool-free installation, no driver needed. Supports for Windows 98/se/me/2000/xp/7/vista, for Mac OS8.6 and latest version. HDD Enclosure only, other accessories demo in the picture are not included! Specification: Material: Aluminum Alloy Plug Type: US, EU Interface: USB2.0, USB3.0 Transmission speed: 480Mbps System support: for Windows 98/se/me/2000/xp/7/vista, for Mac OS8.6 and latest version Color: Black, Silver Dimension: 18.5x11.2x3.0cm/ 7.28x4.41x1.18in Quantity: 1 Set Note: 1.No retail package. 2.Please allow 0-1cm error due to manual measurement. plz make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Pc x HDD Enclosure 1 Pc x Power Adapter 1 Pc x USB Cable 1 Pc x Screwdriver 1 Set x Screws