Hi @Moemoe17. You didn’t say, but I’m guessing that your question is about using a Square card reader with your Samsung S21? If so, then according to this Square device compatibility page, the only S21 compatible reader is the one shown in the photo below. Square does not have a USB card reader for any device.
Chip A.
Square Expert & Innovator
(But NOT a Square employee, just a seller like you)
Was my post helpful? Take a moment to mark it as a possible "best answer." I hate the term, and wish we could just mark posts as "helpful." But this is our only mechanism at the moment. Just remember "Best answer" should be interpreted as "helpful," and nothing more. LOL. "Best" (ugh) answers help folks possibly find solutions to similar problems they are hoping to solve.
