Newegg offers the Acer 28" 4K 2160p LED-Backlit LCD Monitor
in Black, model no. CB280HK, bundled with a $100 Chili's eGift Card
with free shipping
. Assuming you use the gift card, that's a savings of $300 and the best price we've seen for this monitor. It features a 3840x2160 native resolution (four times that of 1080p TVs), LED backlight, G-sync, DisplayPort, and one HDMI port.