Features multi-power supply for effects pedals 16 transformer isolated and highly filtered power slots designed for powering up to 15 effects pedals simultaneously without any noise and charging USB devices advanced filter technology prevents high frequency noise external transformer prevents low frequency interference total output power: 27.95 W (3,550 mA) 6x 9V DC, 100 mA each, 2.1 x 5.5 mm barrel plug, polarity (-) center 5x 9V DC, 150 mA each, 2.1 x 5.5 mm barrel plug, polarity (-) center 4x switchable slots (9V DC, 300 mA / 12V DC, 200 mA / 15V DC, 180 mA / 18V DC, 150 mA), 2.1 x 5.5 mm barrel plug, polarity (-) center 1x USB 5V, 1 A, Type-A individual status LEDs and short circuit protection for all power slots input voltage 18V DC incl. 1x 18V DC power adapter (2,000 mA) with exchangeable multi-regional plug adapters (EU, UK, US/CA, AU/NZ), input voltage 100-240V AC incl. 16x RockBoard Flat Power Cable, 60 cm - for connecting effects pedals incl. 1x RockBoard Power Ace Voltage Doubler Y-Cable, 20 cm / 7 7/8 (blue) - for bridging 2 slots and doubling/combining the volt output incl. 1x RockBoard Power Ace Current Doubler Y-Cable, 20 cm / 7 7/8 (white) - for bridging 2 slots and doubling/combining the current output product dimensions (L x W x H) 178 x 80 x 30 mm / 7 1/64 x 3 5/32 x 13/16 product weight 400 g / 0.88 lbs