The Texas Instruments TI-Nspire CX II-T CAS is a graphing calculator designed for mathematics, physics, and programming classes in secondary education and higher education. This CAS version supports complex calculations, animated graphs, geometric figures, and scientific analyses. The color display with backlighting ensures clear readability of graphs and data. With 90 MB of storage space, extensive calculations, notes, and tables can be saved. The exam mode meets the requirements for standardized tests but is not suitable for CFA exams. The programming capabilities include TI-Basic for writing and executing code. The device features a built-in rechargeable battery, eliminating the need for disposable batteries. Connectivity options allow for easy transfer of formulas and data to a PC. This model is particularly suitable for advanced mathematics courses and teacher training programs that require sophisticated computational tools. The calculator offers precise calculation capabilities for algebraic, analytical, and geometric problems. The intuitive user interface facilitates efficient work with mathematical functions and data visualizations. The robust construction ensures a long lifespan in daily educational use. Comprehensive documentation and learning materials support its use in the classroom. The device meets the educational requirements of modern STEM education and promotes the understanding of complex mathematical concepts.