Finally got me a Helix 9 si gps for my boat and had it installed yesterday. It's the first semi fancy unit I've had and new to what chips and memory cards to get for it. I ended up ordering the smart strike card for it but since that will mostly only be used when I go to ky lake, was wondering about what memory card it takes. Will just a regular sd card like what I use in my trail cameras work? And if so, what size will the unit take up to? Sorry if it's a dumb question but I'm new to this stuff since I'm coming from a elite 5 HDI unit. Thanks