Humminbird XM 9 20 MSI T Transom Mount Transducer - 710262-1
Compatible with: HELIX 12/10/9 CHIRP SI GPS G2N to the maximum capability of the unit. HELIX 12/10/9/8 CHIRP MEGA SI+ GPS G3N and HELIX 15/12/10/9/8 CHIRP MEGA SI+ GPS G4N to the maximum capability of the transducer.