Square offers a variety of hardware options, including: * Square Reader: A small, portable card reader that can be plugged into your smartphone or tablet. * Square Terminal: A countertop POS system that includes a touchscreen display, card reader, and receipt printer. * Square Register: A full-fledged POS system that includes a touchscreen display, card reader, receipt printer, and cash drawer. * Square Stand: A tablet stand that includes a card reader and receipt printer.