Triple monitor multi screen multiple space wallpaper | 5760x1080 | 534097 | WallpaperUP
Black White Grass. Triple Monitor . TMW Best, 5760X1080 White, HD wallpaper | Peakpx
Some 48:9 triple monitor [5760x1080] wallpapers I've found work well. Seems hard to find ones that don't get grainy and are also good for gaming on middle monitor only (so not distracting).
Triple, Monitor, Screen, , Alien / and Mobile Background, 5760X1080 Military, HD wallpaper | Peakpx