Synology RackStation RS4021xs+ - NAS server - 16 bays - rack-mountable - SATA 6Gb/s - RAID RAID 0, 1, 5, 6, 10, JBOD, RAID F1, 1 hot spare, 10 hot spare, 5 hot spare, 6 hot spare, F1 hot spare - RAM 16 GB - Gigabit Ethernet / 10 Gigabit Ethernet - iSCSI support - 3U