Targus USB Retractable Calculator/Keypad (PAUK001U) Functions as a standard keypad for spreadsheets and financial data and as a 12-digit calculator Embedded, retractable 3-foot USB cable lets you tailor the cable length to your application Easy-to-read LCD extends viewing without fatigue PC only (Windows 98/2000/Me/XP) Includes batteries Limited warranty does not cover products purchased from 3rd party sellers