A Little Extra Storage Whether you use Fusion storage systems to perform incremental backups or swap out large amounts of data, its always handy to have extra drives around—simplify the swapping by mounting those extra drives to spare drive trays. In seconds instead of minutes, you'll hot-swap your way to greater productivity! Compatibility • Compatible with Fusion DX800RAID, DX800RAID Expansion, RX1600 Expansion, RX1600RAID, RX1600Fibre, and RX1600 Vfibre.