Amazon with INNOCN has the INNOCN 27" 4K UHD FreeSync Monitor (27C1U) for $340 - $41 off with coupon code 27C1U4KPC [Exp 5/29] = $299 with free shipping.

• 3840 x 2160 resolution, 60hz refresh rate, 100000:1 contrast ratio, built-in gravity sensor

• 178° wide viewing angle, 1.07B (8bits+FRC) colors, 1x DP, 1x USB C, 2x USB 3.0, 2x HDMI