NETGEAR ReadyNAS 312 2 Bay Network Attached Storage for Small Business & Home Users with 2x2TB Desktop Class High-performance, cost effective, and high-security business storage and backup. Supports up to 40 users. 2 drive bays desktop NAS 5 Levels of Data Protection Level 1: XRAID protection against disk failure. Level 2: Snapshot provides unlimited or user directed incremental backup copies Level 3: Bit rot protection against media degradation. Level 4: Free and embedded real-time anti-virus, with no performance impact Level 5: Easy-to-setup Cloud storage ReadyDR provides disaster recovery for data loss due to a catastrophe.Drive Types Supported SATA/SSD/2.5" or 3.5" High performance Intel Atom 1.2GHz processor with 2GB DDR3 memory. 2 x Gigabit Ethernet ports 2 x Gigabit Ethernet ports