Monoprice Blackbird 4k Up and Down Converter resolutions at 720p@60Hz, 1080p@60Hz, 4K@30Hz, and 4K@60Hz - Walmart.com
4k 30hz or 1440 60hz on a 4k monitor? - Displays - Linus Tech Tips
Belkin 4ft High Speed HDMI - Ultra HD Cable 4k @30Hz HDMI 1.4 w/ Ethernet - F8V3311B04 - -
Digitus USB Type-C HDMI Graphic Adapter 4K/30Hz Grey, Techinn
Startech DP2HDMM3MB DisplayPort to HDMI Adapter Cable 3 m (10 ft.) 4K 30Hz - Walmart.com
USB-C to HDMI Cable (4K@30Hz), Type-C to HDMI Cable | uni
StarTech.com USB 3.1 Type C to HDMI 4K 30Hz UHD Converter (CDP2HD)
UGREEN HDMI Switch for Xiaomi Mi Box 3 In 1 Out HDMI Switcher 4K/30Hz for TV box PS4 Switch HDMI 4K with Controller HDMI Cable|HDMI Cables| - AliExpress