I have the main unit and docking station.
type PDA
country Japan
year 1999
os MS Windows CE 2.11
cpu NEC VR4111 MIPS
speed 69 MHz
ram 16 KB
rom 16 KB
graphic FSTN LCD 240×320
colors 16 shardes of gray
sound yes
ports serial, CompactFlash type I and II,
speaker jack, headphone jack
The Casio Cassiopeia E-15 — Windows CE Handheld
The Casio Cassiopeia E-15 was a Windows CE handheld PC from Casio’s Cassiopeia series — compact devices running Microsoft’s mobile operating system that offered Windows software familiarity in pocket form. Casio combined its consumer electronics expertise with Microsoft’s mobile platform to produce devices targeting business professionals who wanted Windows compatibility on the move. The Cassiopeia series competed with Palm OS devices by offering Pocket Word, Pocket Excel, and Outlook synchronisation — features that corporate IT departments increasingly required in the late 1990s.