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 When performance is your priority, rely on proven, trusted technology. With the cylindrical lithium-ion battery cell your laptop gets stable power that’s great for high-performance devices. Lithium-Ion (Li-Ion) The Electronic Product Environmental Assessment Tool (EPEAT) is a global ecolabel for the IT sector. The EPEAT program provides independent verification of manufacturers’ claims and the EPEAT online Registry lists sustainable products from a broader range of manufacturers than any comparable ecolabel. National governments, including the United States, and thousands of private and public institutional purchasers around the world use EPEAT as part of their sustainable procurement decisions. EPEAT helps purchasers, manufacturers, resellers, and others buy and sell environmentally preferable electronic products. EPEAT-registered products must meet environmental performance criteria that address: materials selection, supply chain greenhouse gas emissions reduction, design for circularity and product longevity, energy conservation, end-of-life management and corporate performance. Bronze-rated products meet all of the required criteria in their category. Silver-rated products meet all of the required criteria and at least 50% of the optional criteria, while Gold-rated products meet all of the required criteria and at least 75% of the optional criteria. EPEAT Silver Hard Drive HDD DIRECTIVE (EU) 2022/2380 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 23 November 2022 (Part III) y HP Compaq Presario CQ57-432SD, AMD E, 1,65 GHz, 39,6 cm (15.6"), 1366 x 768 pixels, 4 GB, 320 GB HP Compaq Presario CQ57-432SD. Product type: Laptop, Form factor: Clamshell. Processor family: AMD E, Processor model: E-450, Processor frequency: 1,65 GHz. Display diagonal: 39,6 cm (15.6"), Display resolution: 1366 x 768 pixels. Internal memory: 4 GB, Internal memory type: DDR3-SDRAM. Total storage capacity: 320 GB, Storage media: HDD, Optical drive type: DVD Super Multi DL. On-board graphics card model: AMD Radeon HD 6320. Operating system installed: Windows 7 Home Premium. Product color: Black http://www.techradar.com/reviews/pc-mac/laptops-portable-pcs/laptops-and-netbooks/hp-compaq-presario-cq57-366sa-1058120/review The Compaq Presario CQ57-366SA won't win any awards for its looks, but does offer the things we look for in a budget machine. It's solid with a decent screen and great speakers, and the sort of internal specifications we'd expect at this price. However, e... Decent peformance, Battery life, Build quality, DVD burner Screen could be sharper, Lacking in graphics power, No HDMI