Voodoo Lab PPY Pedal Power Cable 2.1mm Barrel (Voltage Doubler, 46cm)
Voodoo Labs Pedal Power 2 cable for pedals with higher voltage requirements, use this voltage doubling cable with three 2.1mm straight barrel ends to combine two Pedal Power outputs to make 18V or 24V. Ideal for MXR Flanger and Dime Distortion, Crybaby 535Q, various Fulltone and Keeley products.
Did the job nicely.
Does what it says, nothing else to say!
Did exactly what I bought it for.