The Rolls PB223 Mic Power II Dual 48V Phantom Power Supply supplies 48 phantom volts for two condenser mics using standard 3-pin XLR cables. The AC adapter is included. A unique feature is the ability to power multiple PB223s from a single AC power supply by chaining together power connections for each unit. Each PB223 has two DC jacks as well as a 100 kHz switching power supply to prevent audio noise. Dual inputs and outputs let you feed a single mic, a stereo pair, or any two separate mics.