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 RoHS stands for Restriction of Hazardous Substances. RoHS, also known as Directive 2002/95/EC, originated in the European Union and restricts the use of specific hazardous materials found in electrical and electronic products (known as EEE). All applicable products in the EU market after July 1, 2006 must pass RoHS compliance. The substances banned under RoHS are lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (CrVI), polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE), and four different phthalates (DEHP, BBP, BBP, DIBP). RoHS Lenovo IdeaCentre H50-55, 3.5 GHz, AMD A10, A10-7800, 6 GB, 1 TB, Windows 8.1 Lenovo IdeaCentre H50-55. Processor frequency: 3.5 GHz, Processor family: AMD A10, Processor model: A10-7800. Internal memory: 6 GB, Internal memory type: DDR3-SDRAM, Memory clock speed: 1600 MHz. Total storage capacity: 1 TB, Storage media: HDD. On-board graphics card model: AMD Radeon R7. Operating system installed: Windows 8.1, Operating system architecture: 64-bit. Power supply: 280 W. Chassis type: Tower. Product type: PC. Product color: Black