PRESONUS CSR1 DESKTOP REMOTE CONTROL FOR PRESONUS CENTRAL STATIONThe PreSonus Central Station Remote Control CSR-1 can be connected to the rear of the PreSonus Central Station via a DB9 connector to control VOLUME, TALKBACK, MUTE, input source switching and speaker output switching functions. Keep the Central Station in your rack with your gear and use the CSR-1 for ultimate control and flexibility.Further information on the PreSonus CSR-1 Central Station Remote Control