The MXR Iso-Brick Pro Power Supply is a truly professional-grade power supply that provides clean, stable power to a wide variety of pedals. The MXR Iso-Brick Pro Power Supply is a high-output power supply unit with six output terminals (2 x 9VDC 500mA, 4 x 9VDC 300mA), two 9/12/18V DC switchable output terminals (500mA), and one 9VDC 1.5A output terminal, making it possible to power multi-effect units that require high current, such as Line 6 HX Effects and HX Stomp. Each output is fully isolated, completely preventing digital noise interference and noise caused by ground loops. The clean, stable power supply ensures stable operation and maximizes the dynamic range of your effects, from analog overdrives to digital pedals. It's also highly expandable, and if you need more outputs, you can use the dedicated 2.0A 18V DC link output to link it to an MXR Iso-Brick or Iso-Brick Mini, making it possible to build a huge pedalboard. The MXR Iso-Brick Pro Power Supply is a slim yet sturdy design that fits neatly into any pedalboard. The brackets and screws required for mounting are included on the back of the Pedaltrain series.[SPECIFICATIONS] INPUT 100-240V~ 50/60 Hz 1.5A OUTPUT 42W MAX 9V 300mA (x4) 9V 500mA (x2) 9/12/18V 500mA (x2) 9V 1.5A (x1) 18V 2.0A (x1) DIMENSIONS 235 (W) x 88 (D) x 37 (H) mm 9-1/4 (W) x 3-7/16 (D) x 1-7/16 (H) inches WEIGHT 0.84 kg / 1.9 lbs.