BUSlink U3-20TB4S - hard drive array

This BUSlink 4-bay RAID hard drive supports large capacity and USB 3.0/eSATA interface. It supports Intelligent RAID function: RAID 0, RAID 3, RAID 5, RAID 10, and large. Removable HDD trays support hot-plug replacement of drives. HDD intelligent sleep function is supported. The LCM display and buttons support convenient setting of RAID modes and status display.