Lenovo ThinkCentre A70, 2.93 GHz, Intel® Core™2 Duo, 2 GB, 320 GB, DVD-RW, Windows 7 Professional Lenovo ThinkCentre A70. Processor frequency: 2.93 GHz, Processor family: Intel® Core™2 Duo, Processor model: E7500. Internal memory: 2 GB, Internal memory type: DDR3-SDRAM. Total storage capacity: 320 GB, Optical drive type: DVD-RW. Discrete graphics card model: Intel® GMA X4500. Operating system installed: Windows 7 Professional, Operating system architecture: 32-bit. Power supply: 180 W. Chassis type: SFF. Product type: PC. Weight: 18.7 lbs (8.5 kg). Product color: Black