(Will work with: 1) ALL HELIX 15, HELIX 12, HELIX 10, HELIX 9, HELIX 8, HELIX 7 (G2N, G3N, G4N); 2) ALL 11xxci, all 9xxci, all 8xxci, 7xxci HD only; 3) All APEX, SOLIX and ONIX models. Part No.: 720073-3； Length: 20 Feet; AS EC 20E; Use AS ECX 30E for cable extension.
