Ending today, Lenovo offers its Lenovo 28" 2160p 4K LED-Backlit LCD Monitor, model no. LI2821, for $549.99. Coupon code "ACCSAVE20" cuts it to $439.99. With free shipping, that's the lowest total price we could find by $60. It features a 3840x2160 (2160p) native resolution, JBL speakers, 1080p webcam, DisplayPort, HDMI, MHL, and VGA.