This is a Samson Cables branded case for the HP35s and HP33s calculators. The 33S and 35S press fit for a snug fit in the case.  This case has a tighter fit than the stock 35S case and the 33S fits better than the larger 35S.  It is a clamshell style case with double zipper for maximum protection and ease of portability. It is also compatible with most HP financial and scientific calculators including but not limited to: HP10B, HP10BII, HP10BII+, HP11C, HP12C, HP12C Platinum, HP15C, HP15CLE, HP16C, HP17B, HP17BII, HP17BII+, HP32S, HP32SII, and the HP42S.

This is an aftermarket compatible case with a Samson Cables logo


Press Fit For these calculators:
HP 33S 
HP 35S (Tight fit)

Case Also Compatible with:
HP 10B/10II/10BII+
HP 11C
HP 12C
HP 12C Platinum
HP 15C/15CLE
HP 16C
HP 17B/17BII/17BII+
HP 32S/32SII
HP 42S

Other calculator models may fit, the inside dimensions of the zipper case are:

  H(Height) x W(Width) x D(Depth or thickness)  =  6.25" x 3.25" x 0.8"

If your device is within the above dimensions, then it will fit inside this case.  

Case Not Compatible with:
Graphing Calculators