This Texas Instruments TI-84 Plus is a top-of-the-line scientific graphing calculator that has been tested and is ready to use. Its LCD display provides clear and easy-to-read output, while its USB connectivity allows for easy transfer of data. Beyond its standard calculative functions, this calculator also boasts calculus capabilities and is programmable to suit your specific needs. Its handheld size makes it easy to carry with you wherever you go. The calculator comes with a cover for protection.