Infortrend EonNAS 1100 4-Bay 1U Rackmount ZFS-based NAS for SMB (EN1100MC-0032) HDD: 4x 3.5-Inch SATAII/SATAIII Hard Disk Drives CPU: Intel Dual-Core 1.8GHz Processor RAM: 4GB DDR3 LAN: 2x Gigabit LAN Ports USB: 5x USB Ports (1 front, 4 rear) eSATA: 1x eSATA Port