Dell offers the Dell UltraSharp UP2414Q 23.8" 4K Ultra HD IPS LED-Backlit LCD Monitor for $899.99 with free shipping. That's $75 under our mention from three weeks ago and the least expensive Dell 4K UHD display we've seen. (It's a current price low by $138.) It features a 3840x2160 native resolution (four times that of 1080p), LED backlight, 4-port USB 3.0 hub, and DisplayPort, mini DisplayPort, and HDMI inputs.