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 Legacy Intel® Core™ Processor Intel Core i3-2xxx 戴尔 OptiPlex 390, 3.3 GHz, Intel® Core™ i3, 4 GB, 250 GB, DVD±RW, Windows 7 Professional 戴尔 OptiPlex 390. 處理器頻率: 3.3 GHz, 處理器系列: Intel® Core™ i3, 處理器類型: i3-2120. 內部記憶體: 4 GB, 內部記憶體類型: DDR3-SDRAM, 記憶體時脈速度: 1333 MHz. 總儲存空間: 250 GB, 光碟機: DVD±RW. 主機板內建顯示卡型號: Intel® HD Graphics 2000. 提供作業系統: Windows 7 Professional, 作業系統結構: 32位元. 電源供應: 250 W. 機箱外型規格: 台式. 產品類型: PC. 產品色彩: 黑色, 灰色