Guitar Pedal X - GPX Blog - Boss's new GA-FC-EX Foot Controller Massively Expands on the Control Capabilities for Katana Amps
BOSS Katana - Foot switch needs a WHAT? A STICKER? | Page 2 | The Gear Page
Boss GA-FC 6 Button Footswitch - 761294503096
BOSS - GA-FC | Foot Controller
BOSS GA-FC GAFC - Caltagirone (Catania)
Haven't seen a lot of examples of boards that implement the GA-FC, so here's the one I just put together! (Also posted in r/guitarpedals) : r/BossKatana
Boss GA-FC Foot Controller | Sweetwater
Boss GA-FC – Thomann United States
Boss GA-FC Foot Controller | Electric Violin Shop
BOSS - GA-FC EX | Foot Controller
Boss GA-FC footswitch - Five Star Guitars
UNLEASH the power of your KATANA MKII with the GA-FC - How to use it and why you need it! - YouTube
BOSS GA-FC GA Foot Controller for Katana Amp - SSE Music