Buffalo TeraStation Pro 6 WSS Storage Server 6-Bay 12 TB (6 x 2 TB) RAID Windows Storage Server - WS-6V12TL/R5 Windows Storage Server 2008 R2 Workgroup Edition High performance Intel Atom D510 Dual-Core Processor NovaBACKUP Business Essential v12 Supports RAID 0, 1, 5 Hot Swap hard drives 2 Ethernet ports for port trunking and load balancing Active Directory support Advanced ventilation design