Mike Schleif Northern MinnesotaPosts: 2 January 6, 2016 at 10:06 pm #1590344 Underneath the batteries in the back there should be a small silver slot that’s folds up for an SD card.
Mike Schleif Northern MinnesotaPosts: 2 December 29, 2015 at 11:29 pm #1588292 All Garmin chips should tell you what units they are compatible with if you look online. Depending on where you spend your time fishing, the “Upper Midwest” SD chip covers quite a bit of water bodies without being too highly priced.