The latest addition to my collection: a hp39gs calculator paid 5€

HP 39gs is the replacement model for the HP 39gs Graphing Calculator. Serial and USB cable included. The HP 39gs is permitted for use duing SAT I, SAT II Math IC / IIC, ACT, PSAT / NMSQT, AP Chemistry / Physics, PLAN, EXPLORE exams.

  • 75 MHz ARM9 CPU
  • Display size: 131 x 64 pixel
  • 256 K Ram Memory
  • Both Serial Port or USB for data communication - see HP CONNX3
  • Power: AAA x 4 + CR2032 x 1 (commonly available from photo shops), auto power OFF in 5 minutes.
  • Dimensions: 184 x 87 x 24 mm
  • Weight: 220 grams


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