2 Bay Network Enclosure with USB and Network Storage for Home and Office, Backup. Mirroring; 352UN is 2 Bay Enclosure with USB and Networks Storage for Home and Office Users. Access by USB 2.0 or Ethernet Port; Aluminum Case; Temperature Controlled Fan; Gigabit Ethernet: 10/100/1000 mbps transfer; SATA Speed: Install any capacity 3.5; SATA Hard Disk(s); Network Accessible: Easy to share storage on your LAN; Network RAID Modes: Create a huge volume or Drive Mirror with Windows; Limitless Storage