My card (German) looks like it doesn't have a magstripe any more. It's got a black stripe on the back all right, but that's only half the usual height and has w

My card (German) looks like it doesn't have a magstripe any more. It's got a black stripe on the back all right, but that's only half the usual height and has writing on it. I'm about to visit the US in a couple of weeks so we'll see if it works...