Whether in an office setting or at home, the EL2630PIII is the perfect 12-digit printing calculator for the occasional user. The extra-large display makes for easy viewing. Engineered with a Microban® antimicrobial agent that reduces the growth of microbes and bacteria on the keys that cause discoloration and odors. You will always be able to count on the fast and reliable 4.8 lines-per-second ribbon printer. Other functions include: mark up key for calculating cost-sell-margin calculations, tax keys, grand total key, and more. Power Source(s): AC; Display Notation: Numeric; Number of Display Digits: 12; Memory: 4-Key.