Overland Storage SnapServer 620. Total storage capacity: 2000 GB, Hard drive capacity: 500 GB, Hard drive rotational speed: 7200 RPM. Memory type: DDR 400 ECC, Internal memory: 2048 MB, Maximum internal memory: 4 GB. Processor family: AMD Opteron, Processor clock speed: 1000 MHz, L2 cache: 1 MB. Networking features: Gigabit Ethernet, Cabling technology: 10/100/1000Base-T. Pre-installed software: GuardianOS