4K PROJECTOR Boss 26A Ultra HD 3840 x 2160 Resolution Multimedia Projector with HDMI/USB Connectivity for Home/Office/School |7000 L of Brightness | 9000:1 Long-Lifetime of 60,000 Hours : Amazon.in: Electronics
AORUS FO48U 48" 4K OLED Gaming Monitor, 3840x2160 , 120 Hz Refresh Rate, 1ms Response Time (GTG), 1x Display Port 1.4, 2x HDMI 2.1, 2x USB 3.0, with USB Type-C, Space Audio
3840x2160 Amazon New World 4K Wallpaper, HD Games 4K Wallpapers, Images, Photos and Background - Wallpapers Den
Amazon.com: Hotpet 4K Autofocus USB Camera Module Sony IMX415 No Distortion Lens Video Surveillance Camera for Machine Vision, 3840x2160@ 30fps USB Webcamera, Plug&Play OTG Camera : Electronics