The Verbatim PowerBay Quad RAID system is a great solution for direct attached server backup. RAID modes 0, 5 and 10 are offered for data protection and redundancy. Multiple connection interfaces include USB, Firewire 800 and eSATA for fast data transfer and unsurpassed versatility. Setup is extremely simple and does not require a PC connection. Like the PowerBay NAS, PowerBay RAID offers hot swapping of drive cartridges and automatically rebuilds data set upon insertion of a new cartridge. Total capacities of 2TB and 4TB are available.