Lenovo ThinkCentre M58e, 3 GHz, Intel® Core™2 Duo, 2 GB, 320 GB, DVD-RW, Windows 7 Professional Lenovo ThinkCentre M58e. Processor frequency: 3 GHz, Processor family: Intel® Core™2 Duo, Processor model: E8400. Internal memory: 2 GB, Internal memory type: DDR2-SDRAM, Memory clock speed: 800 MHz. Total storage capacity: 320 GB, Optical drive type: DVD-RW. Discrete graphics card model: Intel® GMA 4500. Operating system installed: Windows 7 Professional. Chassis type: SFF. Product type: PC. Weight: 11 kg. Product color: Black