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 联想 ThinkPad SL400, 英特尔® 酷睿™2 双核, 2 GHz, 35.8 cm (14.1"), 2 GB, 250 GB, Windows Vista Business 联想 ThinkPad SL400. 处理器系列: 英特尔® 酷睿™2 双核, 处理器: T5870, 处理器频率: 2 GHz. 显示器尺寸（对角长）: 35.8 cm (14.1"). 内置存储器: 2 GB, 内存类型: DDR2-SDRAM. 总存储容量: 250 GB, 光驱类型: DVD-RW. 已预装操作系统: Windows Vista Business. 产品色彩: 黑色. 重量: 2.5 kg