HP dx2420 MT, 1.86 GHz, Intel® Core™2 Duo, 2 GB, 500 GB, DVD±RW, Windows Vista Home Basic HP dx2420 MT. Processor frequency: 1.86 GHz, Processor family: Intel® Core™2 Duo, Processor model: E6300. Internal memory: 2 GB, Internal memory type: DDR2-SDRAM, Memory clock speed: 800 MHz. Total storage capacity: 500 GB, Card reader integrated, Optical drive type: DVD±RW. Discrete graphics card model: AMD Radeon HD 4650. Operating system installed: Windows Vista Home Basic. Power supply: 300 W. Chassis type: Micro Tower. Product type: PC. Weight: 22.5 lbs (10.2 kg)