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 You can spend more time running your business and less time concerned with IT when you have Windows 10 Pro. Build-in security, enhanced productivity features, and easy-to-implement management tools provide an essential foundation to keep your business humming. Windows 10 Pro Lenovo ThinkCentre M75s, 3.7 GHz, AMD Ryzen™ 5 PRO, 16 GB, 512 GB, DVD±RW, Windows 10 Pro Lenovo ThinkCentre M75s. Processor frequency: 3.7 GHz, Processor family: AMD Ryzen™ 5 PRO, Processor model: 3400G. Internal memory: 16 GB, Internal memory type: DDR4-SDRAM, Memory clock speed: 2400 MHz. Total storage capacity: 512 GB, Storage media: SSD, Optical drive type: DVD±RW. On-board graphics card model: AMD Radeon Vega 11. Operating system installed: Windows 10 Pro, Operating system architecture: 64-bit. Power supply: 180 W. Chassis type: SFF. Product type: PC