The OEM Victor 2640-2 Commercial Desktop Printing Calculator features an extra-large, 12-digit fluorescent display for easy reading. It prints at a speed of 4.6 lines per second in two colors and includes a built-in metal paper arm for durability. This calculator offers various functions including left-hand total key, equals plus logic, and two independent tax keys, along with cost/sell/margin keys. It also displays and prints time and date, and is powered by AC for continuous use.