Hewlett Packard HP50G Scientific Graphic Calculator #F2229AA (Stock Available: 2)

The hp50g is the ultimate graphing calculator for surveying,
engineering, maths and science professionals and students.
The new hp50g graphing calculator features an SD card
slot with formatting functions, RPN, Algebraic and Textbook
data entry, a very large high-contrast screen with more usable space than ever before, RS232 and USB connectivity,
plus HP Solve, structured programming and a Computer
Algebra System (CAS).
 
HP50G Datasheet.pdf

• Massive 2.5MB total memory-512KB RAM plus
  2MB flash ROM.
• New larger equation library and 2300+ built-in
  functions.  
• USB connectivity kit with USB cable, connectivity
  software and pouch included.
• Choose RPN, Textbook and Algebraic entry.
• Enhanced HP keypad with re-definable keyboard
  and menu keys.  
• HP Solve application allows you to type and store
  an equation then use to solve any variable
• Easily perform complex arithmetic and calculus
  functions with advanced Computer Algebra System
• New powerful High Speed SD card slot allows you to format
  your card right in the calculator and expand memory.
• Calculate advanced expressions and view solutions
  in 2- or 3-D graphical representation.
• Isolate and evaluate sub-expressions using the
  intelligent editor.
• Improved connectivity with new serial port
  connectivity, updated USB driver, and IR port.