Texas Instruments TI-89 Titanium Graphing Calculator & Cover | Tested & Works

For sale is a Texas Instruments TI-89 Titanium graphing calculator in excellent working condition. The calculator has been fully tested — the display is clear, keys are responsive, and all functions work as intended. Perfect for high school, college, or professional use in math, science, and engineering. The protective slide case shows noticeable surface marks and wear, but the calculator itself is in excellent cosmetic shape with only light signs of use. Performance is unaffected. The TI-89 Titanium is one of TI's most advanced models, featuring a faster processor, more memory, and USB connectivity compared to earlier versions. Widely accepted for exams and ideal for advanced coursework in calculus, statistics, and engineering. Includes: TI-89 Titanium calculator and protective case.