Is this keyboard good for low vision?

Yes. The legends are about four times standard size, and black on fluorescent yellow gives strong contrast. That makes individual keys easier to locate than on a standard black keyboard.

Does it work with a Mac?

Adesso lists PC, Mac, iOS and Windows support over USB. The multimedia hot keys may not map to every function on macOS, but typing and the number pad work normally.

Is it loud to type on?

No. It uses silicone rubber membrane switches designed to reduce typing noise, so it is quieter than a mechanical keyboard. It is not silent, but it suits shared rooms.

Does it have a backlight?

No. The name refers to the bright yellow keycaps, not to illuminated keys. The high-contrast print is what aids visibility, so it needs some room light.

The keyboard and its attached USB cable. It is a single wired unit with no separate receiver, batteries or software disc.

How long will the keys last?

Adesso rates the switches at 5 million keystrokes. That is fine for everyday office and classroom typing but below what mechanical keyboards typically claim.