fwiw, I've used Revolut to rent cars in both the US (Alamo) and Ireland (Enterprise, Hertz). In all cases I had prepaid using Revolut and taken out the insurance. At the desk, Alamo and Hertz just charged additional for the tank of petrol. Enterprise also wanted a €250 deposit, which was fine because the Revolut had plenty of funds on it. And Alamo was able to subsequently charge my Revolut because I drove onto a toll road without having a transponder. Didn't mean to but the traffic was too confusing to get into the lane that took manual payments. A bit like using the M50 and not paying.
btw, always have an additional card to Revolut. Don't rock up to the rental desk and say, "TLO said it would be fine". Just saying.
Anyway, back to the OP's original question. A Permanent TSB debit card will work in the United States. At the checkout, or an ATM, you may be asked Debit or Credit? Always answer Credit and your transaction will go through.
btw, always have an additional card to Revolut. Don't rock up to the rental desk and say, "TLO said it would be fine". Just saying.
Anyway, back to the OP's original question. A Permanent TSB debit card will work in the United States. At the checkout, or an ATM, you may be asked Debit or Credit? Always answer Credit and your transaction will go through.