2 x 2.1mm (F) to 1 x 2.1mm (F) DC straight connectors.

Connects 2 fully isolated matching DC power supply outputs to double the available voltage (not the current): e.g. combines 2 x isolated 9v 500mA DC outputs to create 1 x 18v 500mA DC output.

For use with standard centre negative polarity pedals.

10cm + 20cm long.

Black.