Synology DiskStation DS1618+, made for a variety of server roles such as backup, file storage, email servers, and domain controllers! <br/> Form Factor: NAS Tower Server<br/>Internal File System Format: EXT4, Btrfs<br/> Ports: 4 x RJ-45 1GbE LAN Port (with Link Aggregation / Failover support); 3 x USB 3.0 Port; 2 x eSATA Port<br/> Processor: Intel Atom C3538 Quad-Core 2.1GHz 8MB CPU<br/> Memory: 32GB DDR4 PC4-19200 2400MHz Memory<br/> Storage: 6TB (6 x 1TB) SATA III Solid State Drives for Ultra Fast Storage<br/> Power: Single Power Supply<br/> Operating System: Synology DSM Software<br/>NAS chassis comes in a sealed box.<br/> Hard drives and memory upgrades included separately NOT installed, installation required.<br/>