Fujitsu Primergy RX300 S5 2x XE5520, PRIMERGY. Processor frequency: 2.26 GHz, Processor family: Intel Xeon, Processor model: E5520. Total storage capacity: 438 GB, Hard drive size: 6.35 cm (2.5"). Internal memory: 4 GB, Maximum internal memory: 144 GB, Memory clock speed: 1066 MHz. Networking features: 10/100 Mbit/s. Chassis type: Rack (2U)