Newegg offers the ViewSonic 28" 2160p 4K Ultra HD LED-Backlit LCD Monitor, model no. VX2880ml, for $499.99. Apply coupon code "VISACHECKOUT" and checkout with Visa Checkout to drop the price to $479.99. With free shipping, that's the lowest total price we could find by $20. It features a 3840x2160 native resolution (four times that of 1080p monitors), LED backlight, HDMI, and DisplayPort. Deal ends October 18.