A cable with a 2.1mm straight barrel and a straight 3.5mm
mini plug with standard (tip positive) polarity. The 3.5mm mini plug
cable connection is compatible with older/vintage MXR, DOD,
Electro-Harmonix, Pro-Co (Rat series), Klon Centaur, and vintage
(non-LED) Voodoo Lab pedals.

Power Supply Connector:
2.1mm Straight Barrel Plug

Pedal Connector:
3.5mm Straight Mini Plug

Polarity:
Standard (Tip Positive)

Length:
18 in / 46 cm