M5-IC controller can manage up to 64 controllers and can be retrofit into any Casi hardware system. Controller is Ethernet-enabled and can monitor up to three additional enclosures. Controller can initiate commands by operator, time schedules, and events. Supports multiple card format, AES 128/256 bit encryption, and TLS. Offers universal I/O device characterization and large encoded card number support. System is built on the open Authentic Mercury platform.