AliExpress , 17$( see coupons below). https://www.aliexpress.us/item/3256806198514308.html

Plus AliExpress tends to offer coupons.

So let's say you buy 300$ of stuff from Amazon, and 300$ of stuff from AliExpress.

Even if the products are the same price, AliExpress will offer a 30$ off coupon.

Amazon has to build in a higher margin though, they practically have a no questions asked return policy for anything less than say 100$. AliExpress is a bit more difficult here.

I even remember getting on chat support with Amazon, and telling them I was basically too dumb to put a table together right. No return, they just refunded me $200. You don't get that with AliExpress.

Lenovo does this too.

It's just marketing.What matters is at the end of the day what you paid for it.