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 Wi-Fi CERTIFIED™ is an internationally-recognized seal of approval for products indicating that they have met industry-agreed standards for interoperability, security, and a range of application specific protocols. Wi-Fi CERTIFIED products have undergone rigorous testing by one of our independent Authorized Test Laboratories. When a product successfully passes testing, the manufacturer or vendor is granted the right to use the Wi-Fi CERTIFIED logo. Certification means that a product has been tested in numerous configurations with a diverse sampling of other devices to validate interoperability with other Wi-Fi CERTIFIED equipment operating in the same frequency band. Certification is available for a wide range of consumer, enterprise, and operator-specific products, including smartphones, appliances, computers and peripherals, networking infrastructure, and consumer electronics. At retail, the Wi-Fi CERTIFIED logo gives consumers confidence that a product will deliver a good user experience. Service providers and enterprise IT managers specify Wi-Fi CERTIFIED to reduce support costs and ensure a product has met industry-agreed requirements. Y <b>在您最需要的时候，为您提供更高的性能</b> 当低于规格限制操作时，Intel® Turbo Boost Technology 2.0 可以通过提高操作频率加速处理器和图形性能。最大频率取决于工作负荷、硬件、软件和整体系统配置。 2.0 Legacy Intel® Core™ Processor Intel Core i5-2xxx DIRECTIVE (EU) 2022/2380 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 23 November 2022 (Part III) y 联想 ThinkPad L420, 英特尔®酷睿™ i5, 2.3 GHz, 35.6 cm (14"), 1366 x 768 像素, 4 GB, 320 GB 联想 ThinkPad L420. 处理器系列: 英特尔®酷睿™ i5, 处理器: i5-2410M, 处理器频率: 2.3 GHz. 显示器尺寸（对角长）: 35.6 cm (14"), 显示器分辨率: 1366 x 768 像素. 内置存储器: 4 GB. 总存储容量: 320 GB, 光驱类型: DVD-RW. 板载图形适配器型号: 英特尔® HD 显卡 3000, 独立显示适配器型号: Intel® HD Graphics. 已预装操作系统: Windows 7 Professional. 产品色彩: 黑色. 重量: 2.3 kg