DisplayPort 1 Hard Drive HDD HP Compaq Pro 6005 Pro, 3 GHz, AMD Phenom II X2, 2 GB, 500 GB, DVD Super Multi, Windows 7 Professional HP Compaq Pro 6005 Pro. Processor frequency: 3 GHz, Processor family: AMD Phenom II X2, Processor model: B55. Internal memory: 2 GB, Internal memory type: DDR3-SDRAM, Memory clock speed: 1333 MHz. Total storage capacity: 500 GB, Storage media: HDD, Optical drive type: DVD Super Multi. Discrete graphics card model: AMD Radeon HD 4200. Operating system installed: Windows 7 Professional. Power supply: 320 W. Chassis type: Micro Tower. Product type: PC. Product color: Black