The Strymon Zuma R300 is the compact version of the Zuma and allows the comfortable power supply of up to five effect units, whereby the completely analog construction and the double insulation guarantee a noiseless operation. A total of four connections of the Strymon Zuma R300 provide sufficient power reserves of 500 mA and 9 volts for current-hungry effects, while an output with switchable voltage between 9, 12 and 18 volts meets special needs. Status LEDs provide precise information about the operating status of each connection.

Another special feature is the 24 volt thru output of the Strymon Zuma R300, which allows the extension of the multiple power supply with an optionally available Strymon Ojai and thus also enables the power supply of large setups without problems. The ultra-compact Strymon Zuma R300 can be installed on most pedal boards to save space.