DELL OptiPlex 960 MT, 3 GHz, Intel® Core™2 Duo, 4 GB, 250 GB, DVD-RW, Windows 7 Professional DELL OptiPlex 960 MT. Processor frequency: 3 GHz, Processor family: Intel® Core™2 Duo, Processor model: E8400. Internal memory: 4 GB, Internal memory type: DDR2-SDRAM, Memory clock speed: 800 MHz. Total storage capacity: 250 GB, Optical drive type: DVD-RW. Discrete graphics card model: AMD Radeon HD 3450. Operating system installed: Windows 7 Professional. Power supply: 305 W. Chassis type: Mini Tower. Product type: PC. Weight: 27.1 lbs (12.3 kg). Product color: Black, Gray https://gcn.com/articles/2009/04/20/review-dell-optiplex-960.aspx However, when replacement time arrives, the configuration of the Optiplex will make it easier. No tools are required for entry or extraction of the hard drives and optical drives. The Optiplex was one of the top performers in our benchmark tests, scor... Good performance, excellent security and green features. Minimal expansion capability.