Casio Natural Textbook Black Scientific Calculator with Bonus 2GB Micro SD Card with Adapter Multiple features such as Advanced Fration calculations, List-Based Statistics, Multi-Replay function and more! Casio Natural Textbook Black Scientific Calculator with Bonus 2GB Micro SD Card with Adapter Natural textbook display so it looks just like the equations in your textbook Solar powered with battery backup Permitted on tests AP, SAT l/ll, PSAT, NMSQT, and ACT