Compatible with and also requires the AS EC QDE adapter cable and an Ethernet cable: all HELIX 8, all HELIX 9, all HELIX 10, HELIX 12 and all HELIX 15 models, select HELIX 7 products: (HELIX 7 CHIRP GPS G4N, HELIX 7 CHIRP MDI GPS G4N, HELIX 7 CHIRP MSI GPS G4N, HELIX 7 CHIRP GPS G3N, HELIX 7 CHIRP MDI GPS G3N, HELIX 7 CHIRP MSI GPS G3N, HELIX 7 CHIRP GPS G2N, HELIX 7 CHIRP DI GPS G2N, HELIX 7 CHIRP SI GPS G2N