The Casio fx-9750GIII Graphing Calculator is a handheld device with regular key size that is specifically designed for graphing functions. It operates on battery power or can be connected to a USB port for convenience. This model does not come with a manufacturer warranty, but it is reliable for business and industrial applications. The Casio brand is known for producing quality calculators, making the fx-9750GIII a solid choice for those in need of a graphing calculator.
eBay