Genuine Windows XP Professional Intel Pentium Core 2 Duo Processor E4500(2MB L2 2.20 GHz 800 MHz) 1024MB DVD-RW 160GB Acer's Veriton M661 is a feature-filled desktop PC that brings high-end components to any office environment. Boasting the Acer "Cabinet" design the Veriton M661 is smaller than the standard tower yet provides exceptional expandability superb management and excellent data protection tools. Being Energy Star 4.0 compliant the Veriton M661 ensures significant power savings. vPro Technology Platform Intel vPro processor technology noticeably improves system manageability through remote asset inventory and diagnostics/repair utilities greatly reducing service calls and system downtime. Performance Optimisation Explore the new Intel Core2 Duo desktop processor providing revolutionary performance unbelievable system responsiveness and impressive energy efficiency: it's up to 40% faster and over 40% more energy efficient than other processors. In addition the Veriton T661 is equipped with the Intel Q35 Express Chipset that is designed specifically for the business world and has improved security features and an enhanced platform stability. Product Features Processor Processor clock speed 2200 MHz Chipset Intel Q35 / ICH9DO Processor Intel Core 2 Duo E4500 Processor family Intel Core 2 Duo L2 cache 2 MB Processor front side bus 800 MHz Display Display included N Memory Internal memory 1024 MB Memory slots 4 DIMM Internal memory type DDR2 SDRAM Maximum internal memory 8 GB Video memory Graphic adapter Intel GMA 3100 Disk drive Hard disk drive capacity 250 GB Hard disk rotational speed 7200 RPM Optical drive Optical drive type DVD±RW Operating system/software Operating System provided Windows XP Professional Bundled software Acer Empowering Technology LANScope Norton AntiVirus Adobe Reader Cyberlink PowerDVD Connectivity Parallel port 1 Serial ports 1 PS/2 ports quan