This is a model Helix 7 DI GPS. It does not have SI.I bought it last year to use on the front deck while spider rigging in the spring. It has very low hours on it because I pull crankbaits during the summer using the unit I have mounted on the console. It comes with the mounting bracket for the trolling motor, transducer and power cord and is in excellent shape. $280.00 call or text Kenny @ 901-262-2167