The fx-730p series
Find-it on ebay.com -
 
 This series have only two models : the fx-730p and the fx-740p (with extended memory). As every FX from previous series, those pockets have F KEY. The commons :

 Their size : 165 x 77 x 13 mm

 A 24-digit lcd sreen.

 A programming language very rudimentary

 A Data Bank function