Compucessory : 12-Dgt LCD Calc,w/PC Interface/USB Hub,5-1/2"x7-1/2"x1-1/2" 12-digit calculator has liquid crystal display (LCD), PC interface and 10-key keyboard for notebook PC. (PC link with three-port USB 2.0 hub.) Offers tax rate calculation function, cost-sell-margin calculation and back space key. Send calculation result to PC. Runs on AC and solar power. Calculator includes USB cable.:Manufactured by.: Compucessory