Legacy Intel® Core™ Processor Intel Core i3-xxx Lenovo ThinkCentre M90, 3.2 GHz, Intel® Core™ i3, 2 GB, 320 GB, DVD Super Multi DL, Windows 7 Professional Lenovo ThinkCentre M90. Processor frequency: 3.2 GHz, Processor family: Intel® Core™ i3, Processor model: i3-550. Internal memory: 2 GB, Internal memory type: DDR3-SDRAM, Memory clock speed: 1333 MHz. Total storage capacity: 320 GB, Optical drive type: DVD Super Multi DL. On-board graphics card model: Intel® HD Graphics, Discrete graphics card model: Intel® HD Graphics. Operating system installed: Windows 7 Professional, Operating system architecture: 64-bit. Power supply: 280 W. Chassis type: Tower. Product type: PC