This Casio Cassiopeia PV-400 Plus PDA is a reliable and efficient device for all your personal and professional needs. It comes equipped with a 4 MB installed memory (RAM) and is compatible with the Casio operating system. The device is in good working condition and comes with a base charger for easy charging.

With its compact design and advanced features, this Casio Cassiopeia PDA is perfect for those who need to stay organized and productive on-the-go. Its brand name, Casio, is synonymous with quality and reliability. This PDA series is known for its user-friendly interface and efficient performance. Whether you're using it for work or personal use, this PDA is sure to meet your needs.