The Texas Instruments TI Nspire CX CAS Color Graphing Calculator in Black With Case is a handheld device designed for scientific and graphing calculations. Featuring an LCD display, USB connectivity, backlight, calculus functions, and programmable capabilities, this calculator offers a range of useful features for various tasks. With a power cord as its source, this calculator is compact in size and ideal for on-the-go use in a variety of professional and educational settings. The sleek black design and included case make it a convenient and stylish tool for anyone in need of advanced calculations capabilities.