Power doubler adapter cable for Line 6 HX effects and HX stomp pedals features Combines two (2) power supply outputs into one (1) output and doubles the current rating 2 x 2.1mm right angle plug and 1 x 2.5mm right angle plug. Green color helps to stand out from other cables Polarity: Center negative (default) Product Dimensions: 610mm (L), Net Weight: 0.05kg (0.1lbs.)