The IBM Retail POS Keyboard w/ Card Reader (later Toshiba POS System Keyboard w/ Card Reader) was one of five Model M POS input devices introduced with the IBM 4694 POS Terminal in June 1993. As the name suggests, this is a variant of the standard Model M7 that includes a magnetic stripe reader (MSR). In its default layout, the keypad has 50 keys of which 49 are usable, and the middle bank has a numeric keypad made up of single-unit keys with the zero key taking up two switches. The single key on its own serves as a dedicated Ctrl key. The other slightly larger keys are designed to be programmable and thus have transparent keytops.