Finally found one, but it's from a company that was previously owned by an extremely evil person who did something (gave $1.6 billion to the Federalist Society) that will cause enormous harm to our world and to people we care about. So I've been boycotting that company.
@antares I've set up everything in my ham shack to use Anderson Powerpoles for 12V. They're not bad, but a much better connector could exist.
https://en.wikipedia.org/wiki/Anderson_Powerpole