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Specifications: Casio Cassiopeia A-21S

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Casio Cassiopeia A-21S - HPC:Factor Device Specifications
Manufacturer Casio
HPC Name Cassiopeia A-21S
Device Class Handheld PC (Clamshell)
Supported Windows CE Versions Handheld PC 2.0 (Windows CE 2.00)
Part #
Availability (Discontinued)
RRP / MSRP $399.95 USD (£300.71 GBP, €354.84 EUD, ¥45,326.67 JPY, est.)
Street Price
Buying Resources

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185 mm x 94 mm x 26 mm
7.28 in x 3.70 in x 1.02 in
Weight 431g (0.95lbs)
CPU Type
Bus Width:
Super-H 3
Instruction Set:
Supported Architectures:
SH3 (Microsoft CPUID: 10003)
CEF (Microsoft CPUID: 0)
CPU Clock Speed 80 MHz
Persistent Storage Area (PSA)
Device is not equipped with a Persistent Storage Area
Upgradeable ROM Unknown
Graphics Chip
Display Type STN
Backlight Yes
Screen Visual Area 157 mm x 62 mm (6.18 in x 2.44 in)
Diagonal: 168.80 mm (6.65 in)
Screen Dot Pitch 27 mm
Screen Resoloution 640 x 240
Colour Depth 4 Tone Monochrome (2-bit)
Touch Screen
Device is Capable
Keyboard 62-key QWERTY
Built-in Pointer
Device is not equipped with this Technology
External Mouse
Device is Not Capable
Other Input
Device is not equipped with this Technology
RS232 Serial
Device is Capable
Infrared (IrDA) IrDA 1.0 Serial IR (SIR) - 115.2Kbps
USB Host
Device is Not Capable
USB Client
Device is Not Capable
VGA Connector
Device is Not Capable
External VGA Resolution N/A
Port Replicator
Device is Not Capable
Additional Ports
Device is not equipped with this Technology
Built-in Modem None
Built-in LAN (Wired Network) N/A
Built-in WiFi (Wireless Network) N/A
Built-in BlueTooth N/A
Built-in Cellular N/A
CF Slot Type CF Type I / II
PC Card Slot Type
Device is not equipped with this Technology
Device is Not Capable
MMC Slot
Device is Not Capable
Built-in Speaker Monoaural
Headphone Slot
Device is Not Capable
Mic Slot
Device is Not Capable
Built-in Mic
Device is Not Capable
Mains (AC) Rating Input:    
Output: 3V 2.5W
Primary Battery 2 AA
Backup Battery CR-2032
Description The Cassiopeia A-21S brings together the best-in-class handheld PC hardware and software solutions to create a powerful tool for learning and teaching mathematics and science. Our outstanding partnerships combined with the proven Cassiopeia Software will enhance your teaching abilities like never before.

Other info: Has Alarm button on outer shell, lid edge front right.
A-21S I think the S is for Student and Maple math SW was available for the device on CF from Casio once upon a time
ROM Upgrade Details
In the box Cassiopeia
18mb memory card (non-standard optional item)
Users manual
Microsoft Services CD
Quick Start Guide
AD-C50200U a/c Adapter
Synchronization cable
Software in ROM Calculator, World Clock, ActiveSync, PC Link, Remote Networking, Terminal, Solitaire, Pocket Excel, Pocket PowerPoint, Pocket Word, Pocket Outlook, Calendar, Contacts, Inbox, Tasks, Format Built-in Flash
PIM Data Backup, Windows Explorer
Software on CD
H/PC:Update The HPC:Factor Windows Update for Windows CE. Find downloads including ROM updates, drivers, patches and manuals for your Handheld PC in H/PC:Update
4 downloads are available for the Cassiopeia A-21S
View: View H/PC:Update
Compatible Peripherals Visit the Hardware Compatibility List to find compatible hardware devices and upgrades for the Cassiopeia A-21S
View: Hardware Compatiblity List (HCL)
Compatible Software Discover compatible software in the HPC:Factor Windows CE App Store
View: Software Compatiblity List (SCL)
DVD Catalyst No Test Data
Buying Resources

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Last Updated 24 May 2022


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