[Multi-protection] - Anti-over voltage, over-current, overheat, short-circuit, leakage, and other multiple protection designs include a 10-minute auto sleep mode to ensure the security of data transmission of the data external hard drive enclosure. Compatible with Supports Windows XP / Vista / 7/8, Mac OS X 10.2/ Linux. and higher. [Support RAID Mode] - The external hard drive enclosure 4 bay RAID supports RAID 0/1/3/5/10/JBOD/ClONE/Normal RAID Mode which can meet different work requirements, and enlarge the ways of working habits. With manual RAID Set and software management, more friendly. [Secure installation] - 3.5 External hard drive enclosure included separate ABS mounting brackets compatible 2.5''/3.5'' HDD SSD, Screws mounting is more stable, effective anti-vibration and displacement. [Aluminum Heat Dissipation ] - USB 3.0 hard drive enclosure built-in 80mm cooling fan, Made of an aluminum alloy and design of large-area honeycomb holes in the front and rear panel can help the heat dissipation. [Support 80TB Capacity] - 4 bay hard drive enclosures can support all 3.5 inch SATA hard disks with a max of up to 4x20TB capacity. LED indicator monitoring the working status with red light warning and blue light normal to improve the security of hard disks.