What “American seller” do you recommend?
Someone on eBay with a good rating that is designated as shipping from a state in the U.S. or your local pawn shop.
I've been doing my shopping this way since the end of 2019 and all the computers, phones, sub woofers, speakers, solar panels, batteries, DVD's, security cameras, etc. are working fine.
If anything ever does come with a problem, which is very rare, I'm Mr. Fix It and am able to service any flaw. I know the U.N. is going to ban all my tools soon in the name of safety though. *sarcasm but not really sarcasm