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 – Thomann España
Boss Katana 100 MKII 2x12 Combo with GA-FC Foot Controller | Gear4music
Controlador de pedal BOSS GA-FC — Control de suelo para amplis Roland y BOSS : Amazon.es: Instrumentos musicales
BOSS GA-FC EX EXPANDED Pedaleira Controlo 6 Footswitches para Combos BOSS
Finished My Daughter's Katana Pedalboard : r/BossKatana
Love how simple my setup is now. Using gafc for effects, radial pedals for drives. : r/BossKatana
Boss GAFC Footswitch Footswitch (Clearwater, FL) | Reverb
Footswitch Boss GA-FC - Multison
Anyone running a pedal board with their katana ?? : r/BossKatana
Used BOSS GAFC Guitar Combo Footswitch | Guitar Center
Boss Katana 50 MKII EX con Pedal Controlador GA-FC | Gear4music
Boss GA-FC EX, nuevo pedal controlador para la serie de amplificadores Katana | Guitarristas
Controlador de pedal BOSS GA-FC — Control de suelo para amplis Roland y BOSS : Amazon.es: Instrumentos musicales
Compare AIRSTEP Kat and BOSS GA-FC - YouTube
Boss GA-FC EX Foot Controller for BOSS Katana Amplifiers | Sweetwater
Guitar Pedal X - GPX Blog - Boss's new GA-FC-EX Foot Controller Massively Expands on the Control Capabilities for Katana Amps
Boss GA-FC – Thomann España
724ROCKS Boss Pedal Boss GA-FC EX Foot Controller for BOSS Katana Amplifier Boss Footswitch boss gafc ex footswitch | Lazada