GFI System Triple Switch
They say:
Triple Switch provides 3 momentary and normally-opened switch contacts that you can use to unlock the full potential of controls and features of your pedals that possess external control capability.
Specifications:
- Normally-opened momentary switch contacts.
- Output jack : 1/4 inch TRS.
- Dimension : 12.5 x 4 x 5.3 cm ( 5 x 1.6 x 2 inches )
Note: Prior to July 2018, Triple Switch was made to be compatible with Strymon pedals, but was lacking in compatability with other major brands. This previous model had a toggle switch on the top side.