ENERGY STAR® is the government-backed symbol for energy efficiency, providing simple, credible, and unbiased information that consumers and businesses rely on to make well-informed decisions. ENERGY STAR is the simple choice for energy efficiency, making it easy for consumers and businesses to purchase products that save them money and protect the environment. ENERGY STAR Intel® Pentium® Intel Pentium Lenovo ThinkCentre M58e, 2.7 GHz, Intel® Pentium®, 2 GB, 250 GB, DVD±RW, Windows Vista Business Lenovo ThinkCentre M58e. Processor frequency: 2.7 GHz, Processor family: Intel® Pentium®, Processor model: E5400. Internal memory: 2 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 250 GB, Storage media: HDD, Optical drive type: DVD±RW. Operating system installed: Windows Vista Business. Power supply: 280 W. Chassis type: SFF. Product type: PC. Weight: 7.5 kg. Product colour: Black https://www.pcmag.com/article2/0,2817,2347669,00.asp The Lenovo ThinkCentre M58e ($763 direct) is kind of like the M58ps entry-level brother. Some of the same options are available: a range of Intel processors, full-sized hard drives and optical drives, etc. The M58e is a bit less expensive for a sim... Tower configuration gives the system lots of expansion space. Decent price. Good performance numbers. Environmentally friendly. Tower takes up a lot of desk or floor space. Perhaps more corporate-oriented than small business-oriented. Not available in "Ultra-Small" form factor. Think of the Lenovo ThinkCentre M58e as the less expensive, more mainstream member of the M58 series. It shows that "entry level" doesnt have to be stripped to work well.... For a business that is looking to get dedicated desktops with full desktop performance but that consumer less power and take up less space, the ThinkCentre M58e is certainly a strong choice. With its solid performance thanks to the latest... Uses DDR3 Memory, Dedicated Graphics Card, Three Year Warranty Expensive, Limited Hard Drive Space