The GE MRI Excite MUX Board (Part No. 2274188) is a crucial circuit board used in GE Magnetic Resonance Imaging (MRI) systems. It is also referred to as a Remote RF MUX Board or RRF Multiplexer Board. This board is a component of the MRI’s signal processing system, specifically responsible for multiplexing (combining) radiofrequency (RF) signals. It is a Field Replaceable Unit (FRU) and is known to be used in various GE MRI models, including the Signa Excite series and Signa HDxt 1.5T series. The board is designed for high-resolution imaging and is essential for the proper functioning of the system’s RF components.