ASUSTOR Intel Atom 2.13GHz/1GB DDR3/2GbE/2eSATA/USB 3.0/4-Bay NAS Server (AS-604T) HDD: 4x 2.5-Inch or 3.5-Inch SATA II/ III HDD or SSD CPU: Intel Atom Processor (2.13 GHz, Dual-Core) Memory: 1GB DDR3 SODIMM (Expandable up to 3GB) Expansion: 2x USB 3.0 Ports, 4x USB 2.0 Ports, 2x eSATA Ports Network: 2x Gigabit Ethernet Ports