Dell UltraSharp U2720Q 27" 4K UHD (3840 x 2160) 60 Hz LED Backlit LCD IPS USB-C Monitor (7GZ651) - Newegg.com
Dell U2720QM 27 Inch UltraSharp 4K UHD, IPS Ultra-Thin Bezel Monitor (HDMI, DisplayPort, USB-C), VESA Certified, Silver, Black : Electronics
Amazon.com: Dell S3221QS 32 Inch Curved 4K UHD, VA Ultra-Thin Bezel Monitor, AMD FreeSync, HDMI, DisplayPort, Built in Speakers, VESA Certified, Silver : Everything Else