F 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. F BenQ EX2710R, 68.6 cm (27"), 2560 x 1440 pixels, 2K Ultra HD BenQ EX2710R. Display diagonal: 68.6 cm (27"), Display resolution: 2560 x 1440 pixels, HD type: 2K Ultra HD, Native aspect ratio: 16:9, Viewing angle, horizontal: 178°, Viewing angle, vertical: 178°. Built-in speaker(s). VESA mounting, Height adjustment https://www.tomshardware.com/reviews/benq-mobiuz-ex2710r-review 4K monitors are getting a lot of attention these days thanks to console gaming and the frame rates made possible by powerful video cards. But an equally hot category is QHD, mainly because of its terrific value and ideal price/performance balance. I've ch...