Used HP 48SX graphing calculator with a case.  Photo is of the actual item being sold.  Calculator in good cosmetic condition and everything works as it should.  No user manual, no cables, no plug-in modules, batteries included to maintain memory.  Version HP 48-E Copyright HP 1989.  Several programs are included for fun, example, and/or utility: (1) BELT - calculates either diameter of two pulleys, pulley distance between centers, or belt length around both pulleys from specifications of any three of the four parameters, (2) BIORM - calculates the physical, emotional, and intellectual biocycles, including day-of-week and days-between-dates calculators for something actually useful, (3) EBYPF - program to calculate profit, selling price, cost, or postage from inputs of 7 of the 8 parameters profit, selling price, cost, shipping & handling charge (from the auction), postage, insertion fee, tax rate, and bank(USA or foreign) for eBay selling, (4) ERTH - calculates the distance to the horizon and the percentage of the earth's surface visible from a specified height above the earth's surface, (5) ERTHD - calculates the distance between any two locations on the earth's surface from specified latitude and longitude coordinates and the direction to begin travel from the first to the second location (see photo for typical output), (6) MPG - calculates a vehicle's MPG at fill-ups, (7) MWT - calculates the molecular weight of any compound and the percentage of each element in the compound, (8) SCORE - keeps a running game score for up to 3 contestants, (9) SHOP - compares the values of two products while shopping and shows the amount saved by purchasing the less-expensive item.