Intel® Pentium® Intel Pentium HP Compaq dx2420 Microtower PC, 2.5 GHz, Intel® Pentium®, 2 GB, 320 GB, DVD±RW, Windows Vista Business HP Compaq dx2420 Microtower PC. Processor frequency: 2.5 GHz, Processor family: Intel® Pentium®, Processor model: E5200. Internal memory: 2 GB, Internal memory type: DDR2-SDRAM, Memory clock speed: 800 MHz. Total storage capacity: 320 GB, Card reader integrated, Optical drive type: DVD±RW. Discrete graphics card model: Intel® GMA 3100. Operating system installed: Windows Vista Business. Chassis type: Micro Tower. Product type: PC. Weight: 22.5 lbs (10.2 kg)