If your monitor or an HDMI connection is humming, you should rule out a fault. Here you can read how to recognize faulty ...
HDMI 2.1 is a solid all-rounder with support for 4K at 120Hz, or 8K at 60Hz. HDMI 2.0b is a solid choice for 4K 60Hz, too, ...
If you opt for a third-party USB-C to HDMI adapter, you can connect it directly to the ROG Ally's USB-C port. Then, simply ...
If you've got older electronic equipment, you probably have a set of red, white, and yellow cables somewhere in your house.