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 Viewsonic VS18575, 86,4 cm (34"), 3440 x 1440 Pixeles Viewsonic VS18575. Pantalla diagonal: 86,4 cm (34"), Resolució de pantalla: 3440 x 1440 Pixeles, Relació d'aspecte nativa: 21:9 https://www.techradar.com/reviews/viewsonic-vg3456-docking-monitor Ultrawide monitors have been popular with gamers for a while since they provide potentially a greater field of view on those titles that support it. But they also have value to those that need screen real estate in a business scenario, and up to this poin... Docking station in the price, Four inputs including USB-C, 90W USB-C charging Awkward to handle, Challenging to cable, Lacks picture-in-picture, Odd resolution A good quality ultrawide screen with an inbuilt docking station is useful for those that use a laptop as their desktop system. But it isn't easy to deploy and the cost is higher than buying two screens with a greater combined resolution...