AKG CMS Condenser Microphone Modular System PSU N48 and MK14 Units
They work with AKG CMS series microphones like C451 preamp. P48 module gives the power and MK14 gives a breakout for a microphone. You can daisy chain more MK14 units. XLR for the microphone and 3-pin din Tuchel connector for output.