IS200VTURH1A is a VME Turbine card developed by General Electric under the Mark VI series. GE's successful Speedtronic range includes numerous gas-and-steam turbine management systems, including the Mark VI. The TMR architecture was used for the third of these systems. The system's dependability and precision are considerably improved by using three independent and separate IONets, Control TMR Modules, and power supplies. General Electric invented this type of control system in 1983.