Amazon.com: Roland GA-FC Foot Controller for GA-112 and GA-212 : Musical Instruments
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
Love how simple my setup is now. Using gafc for effects, radial pedals for drives. : r/BossKatana
Footswitch Boss GA-FC
UNLEASH the power of your KATANA MKII with the GA-FC - How to use it and why you need it! - YouTube
Boss GA-FC Foot Controller | Sweetwater
ROLAND GAFC FOOT CONTROLLER COMPATIBLE W KTN KATANA 100/212 MKII BLUES CUBE ARTIST CUBE80GX CUBE 40GX GA112 GA212 GA-FCRockshop
Amazon.com: Roland GA-FC Foot Controller for GA-112 and GA-212 : Musical Instruments
BOSS GA-FC EX Foot Controller new EX Version GAFCEX - Victor Litz
Guitar Pedal X - GPX Blog - Boss's new GA-FC-EX Foot Controller Massively Expands on the Control Capabilities for Katana Amps