HP dx2400 + 1GB PC2-6400 (DDR2 800 MHz) DIMM, 2.66 GHz, Intel® Core™2 Duo, 1 GB, 250 GB, DVD±RW, Windows Vista Business HP dx2400 + 1GB PC2-6400 (DDR2 800 MHz) DIMM. Processor frequency: 2.66 GHz, Processor family: Intel® Core™2 Duo, Processor model: E7300. Internal memory: 1 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 250 GB, Card reader integrated, Optical drive type: DVD±RW. Operating system installed: Windows Vista Business. Power supply: 300 W. Chassis type: Tower. Product type: PC. Weight: 10.2 kg