LG 27UD68-P 27" FreeSync IPS LED Monitor 4K UHD 3840 x 2160 16:9 Widescreen On-Screen Control with Screen Split Game Mode & Black Stabilizer HDMI DisplayPort - Newegg.com
electriQ 28" 4K Ultra HD HDR 1ms FreeSync Gaming Monitor - Laptops Direct
Amazon.com: LG 27UD68-P 27-Inch 4K UHD IPS Monitor with FreeSync: Computers & Accessories