Boss PSM-5 Power Supply & Master Switch Pedal (1990)

This pedal is in good condition with minor cosmetic wear. It has been fully tested and is 100% working well with no issues. The original box is not included.

This is the writeup on the pedal translated from Japanese from a 1990 copy of the Boss "All About Effectors" Catalog Volume 11

"It can provide stable power for up to seven 9V effects pedals, and the power supply and master switch allow centralized control of the effects on/off of multiple effects pedals. It also comes with a dedicated AC adapter and parallel DC cord (for 7 units)."