HP V28 4K 28-inch Monitor, 4K UHD (3840 x 2160), HDMI,DP - PC PLACE NIGERIA
Amazon.com: MP New Mobile Pixels 28 Inch UHD 4K Monitor, 60Hz Flat Screen Monitor, Tilt/Height Adjustment, Gaming Computer Monitor, Flick-Free, FPS/RTS Game Mode, VESA Wall Mount/Desktop Monitor for Home Office : Electronics
4K Ultra HD LCD monitor 288E2A/71 | Philips
Acer Releases XBO Series: 28-inch UHD/4K with G-Sync for $800
Monoprice 28-inch CrystalPro review: An affordable 4K USB-C monitor with quirks | PCWorld
Large 28-inch 4K Innocn 28D1U monitor now on sale for just under US$200 - NotebookCheck.net News