Boss GKP-4 Boss GKP-4 Overview: Boss GKP4 Parallel Box The GKP-4 Parallel Box allows you to perform with up to four separate GK-compatible devices using a single guitar. 1 Input/ 4 Output parallel box for guitars equipped with 13-pin GK-compatible pickups No batteries or power supply required; draws power through GK cable Boss GKP-4 Specifications: Connectors GK IN, GK OUT A (Power Supplier), GK OUT B, GK OUT C, GK OUT D Accessories GK cable: C-13D (1.2 m) x 2, Owner's Manual Options Divided Pickup: GK-2A, GK-2B, GK-3 GK cable: GKC-3, GKC-5, GKC-10 Size and Weight Width 210 mm 8-5/16 inches Depth 49 mm 1-15/16 inches Height 34 mm 1-3/8 inches Weight 0.3 kg 0 lbs. 11 oz. Get your Boss GKP-4 today!