Newegg offers the Asus 28" 4K Ultra HD LED-Backlit LCD Monitor, model no. PB287Q, for $519.99. Coupon code "EMCAWNV54" drops it to $489.99. With free shipping, that's $10 under last month's mention and the lowest total price we've seen. (It's the best deal today by $72.) It features 3840x2160 native resolution, 1ms GTG response time, LED backlight, two HDMI inputs, DisplayPort, and two 3.5mm audio jacks. Deal ends September 2.