Amazon.com: Dell S2721QS 27 Inch 4K UHD (3840 x 2160) IPS Ultra-Thin Bezel Monitor, AMD FreeSync (HDMI, DisplayPort), VESA Certified, Silver : Electronics
Dell S2721QS Review: 4K Basics At A Great Price | Digital Trends
Monitor Dell 27'' 4K S2721QSA, 68.47 cm, Maximum preset resolution: 3840 x 2160 at 60 Hz, Screen type: Active matrix - TFT LCD, Panel technology: IPS, Backlight: White LED edgelight system, Faceplate 59
Monitor Dell 27" U2723QE 4K 68.47 cm TFT LCD IPS 3840 x 2160 at 60Hz