Newegg offers the Acer B286HK ymjdpprz 28" 4K 2160p LED-Backlit LCD Ultra HD Monitor, model no. UM.PB6AA.003, for $449.99. Coupon code "EMCAVKV26" drops it to $404.99. With free shipping, that's the lowest total price we could find by $44, although we saw it for $25 less in February. It features a 3840x2160 native resolution, LED backlight, DVI, DisplayPort, USB 3.0, and HDMI. Deal ends July 23.