This website is using cookies. We use cookies to ensure that we give you the best experience on our website. More info. That's Fine
HPC:Factor Logo 

Specifications: Casio Cassiopeia A-21S

« Back

Compare with and (Optionally)
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 (£330.54 GBP, €380.12 EUR, ¥59,711.55 JPY, est.)
Street Price
Buying Resources
Search hpcBay on the HPC:Factor Community Forums for this H/PC
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)
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
Keyboard 62-key QWERTY
Built-in Pointer
External Mouse
Other Input
RS232 Serial
Infrared (IrDA) IrDA 1.0 Serial IR (SIR) - 115.2Kbps
USB Host
USB Client
VGA Connector
External VGA Resolution N/A
Port Replicator
Additional Ports
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
MMC Slot
Built-in Speaker Monoaural
Headphone Slot
Mic Slot
Built-in Mic
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
Search hpcBay on the HPC:Factor Community Forums for this H/PC
Last Updated 24 May 2022

Disclaimer: The data provided through the HPC:Factor Devices & Specifications systems is provided as-is and with no warranties offered or implied.
The information in the Device & Specifications listings have been created from public domain information and / or from the support of users who have submitted specification data to us. If you have any more information on this device, or any other device, please get in touch.