ToughArmor MB411SPO-B, a full metal 2.5" SATA/SAS hard drive mobile rack designed for use in any slim ODD/FDD bay. The MB411SPO-B uses full metal construction to ensure maximum device lifespan and is capable of withstanding the harshest environments. The EZ Slide Micro tray provides hot-swap ability for hassle-free drive maintenance. Utilizing its ultra low profile design, the MB411SPO-B is a perfect storage device for system that has limited space but also requires data storage such as OEM/ODM systems, embedded control systems, factory automation systems, rackmount computers, rackmount servers and IPCs. Black.