The GE IS420UCSDH1 is a high-performance UCSB controller module for Mark VIe control systems, featuring dual-channel operation and robust industrial design. This advanced module executes control logic independently while communicating with I/O networks via high-speed IONet connections. With IEEE 1588 precision time synchronization and support for redundant configurations, it delivers reliable performance for critical automation applications. The compact, fanless design includes flash-upgradeable memory and requires no battery maintenance.