least expensive lowrance unit that will run xi5 ?

Asking for a friend,

need lowest cost unit that will save waypoints , and direct xi5

thanks

MO

Elite ti series. Still need gateway and nmea backbone

^^^This^^^
I know the ti9 will and if I'm not mistaken the 7 will as well. From what I understand the ti5 will not.

Thats correct. 5 does not have nmea interface. 7 and 9 have nmea port