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 Does not contain "conflict minerals": tantalum, tin, tungsten, and gold. Y Legacy Intel® Core™ Processor Intel Core i3-3xxx 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 Gold Lenovo ThinkStation E31, 3.4 GHz, Intel® Core™ i3, 4 GB, 1 TB, DVD±RW, Windows 7 Professional Lenovo ThinkStation E31. ความถี่ของหน่วยประมวลผล: 3.4 GHz, ตระกูลของหน่วยประมวลผล: Intel® Core™ i3, รุ่นของหน่วยประมวลผล: i3-3240. หน่วยความจำภายใน: 4 GB, ประเภทหน่วยความจำภายใน: DDR3-SDRAM, ความเร็วในการส่งข้อมูล: 1600 MHz. ความจุรวม: 1 TB, แหล่งเก็บข้อมูล: HDD, ประเภทของออพติคอลไดร์ฟ: DVD±RW. รุ่นของการ์ดจอแบบติดตั้งบนแผงวงจรหลัก: Intel® HD Graphics 2500. ระบบปฏิบัติการที่ติดตั้ง: Windows 7 Professional, ระบบปฏิบัติการ: 64 บิท. แหล่งจ่ายไฟ: 280 W. ประเภทแชสซี: Tower. ชนิดของผลิตภัณฑ์: เวิร์กสเตชัน