Buffalo  TeraStation Duo 1.0 TB (2 x 500 GB) Network Attached Storage TS-WX1.0TL/R1 Hot swap hard drive trays behind the front panel for easy drive access and replacement Advanced RAID system continually checks hard drive and RAID performance Active Directory Support 10/100/1000 Gigabit Ethernet with Jumbo Frame with Two Ethernet ports for port trunking LCD Display shows important TeraStation information and disk status