This is still available.
In case you were wondering if it will fit your headunit: https://humminbird.johnsonoutdoors.c...-di-transducer
And this is the mount: Transducer Shield and Saver TM-HX-3 fits Humminbird(R) Helix G2N Mega Si or Solix G1N Si Transducer
The 2 together new are $519. I will drop this to $200 shipped.