The RME-6108 is a microphone expansion unit adding up to 8 additional microphone each. The RME-6108 is used to expand the microphone input ports of the PX-6216 digital public address matrix. Each of the four input ports of the PX-6212 can be expanded using one RME-6108. This will expand the total number of microphones that can be connected to the PX-6216 up to 32 possible microphone paging station inputs. Setup and control is easy and efficient with a straightforward Windows® interface. Ideal for large paging environments such as government offices, educational facilities, hospitals, malls, campus, transportation, correctional facilities and a variety of commercial and industrial applications. Ideal for large paging environments such as government offices, educational facilities, hospitals, malls, campus, transportation, correctional facilities and a variety of commercial and industrial applications.