E means that the product is rated in its category in terms of energy efficiency. The Energy Labeling system is based on EU Regulation 2017/1369/EU. E BenQ EX240, 60.5 cm (23.8"), 1920 x 1080 像素, 液晶显示, 1 毫秒, 灰色 BenQ EX240. 显示器尺寸（对角长）: 60.5 cm (23.8"), 显示器分辨率: 1920 x 1080 像素, 显示技术: 液晶显示, 显示面: 雾面亚光, 响应时间: 1 毫秒, 原机长宽比: 16:9, 视角，水平: 178°, 视角，垂直: 178°. 内置扬声器. 内置USB集线器. VESA 安装支架, 高度调整. 产品色彩: 灰色