The ToughArmor series have proven themselves to be an excellent 2.5??? mobile rack solution, and now we are proud to present the external version of the ToughArmor family, the MB991U3-1SB. The MB991U3-1SB is a full metal 2.5??? SATA III to USB 3.0 external HDD/SSD enclosure that is built with enterprise-grade quality and has the ability to hot-swap drives. With the removable EZ-Slide Mini tray, users can quickly swap 2.5??? SATA hard drives or SSDs without shutting down their system or devices, saving valuable time. The EZ-Slide Mini tray accepts most of the 2.5??? SATA HDD / SSD on the market ranging from 5mm to 15mm drive height. The drive tray slot is designed to complement a variety ToughArmor drive trays, allowing users to easily access their hard drives or SSD used in internal ToughArmor units externally, anytime and anywhere. The USB 3.0 interface allows for blazing fast transfer speeds and is backward compatible with USB 2.0 interface to insure compatibility with many systems. The ToughArmor MB991U3-1SB combined with the benefits of portable enclosure and enterprise-class features. It is an ideal enclosure for enterprise storage application such as SMB data backup, data recovery, video production data archiving, data transportation and IT Pros.