The ONIX and ION units are compatible with the IRIS402 IP Marine Camera by Iris Innovations.  These cameras are available through your favorite marine retailer or through Iris Innovations.  

ION Series products support up to four IP cameras and ONIX Series products support one IP Camera.  

These camera's will require that your Humminbird ONIX or ION unit software version is 1.200 or higher.  

The installation of these cameras will also require that the IRIS camera(s) be set up through a laptop prior to installation and use with the unit.  There is an executable file attached to your unit profile in MyHumminbird which will need to be used.  It is titled IP Video Camera Setup - Discovery Tool.   Attached are instructions for setting up these camera for use with your Humminbird product.