Where can I get a blank micro sd card for my Hummingbird Helix 5 si gps and what size Gb,s do I need .

Humminbird recommends SanDisk micro SDs. Size depends on what you want to do. 16g-32gwould cover most. You can buy them anywhere.

32 GB is the largest you can use.

7 hours ago, iabass8 said:

Humminbird recommends SanDisk micro SDs. Size depends on what you want to do. 16g-32gwould cover most. You can buy them anywhere.

Thanks for the reply. I could not find out anything on Hummingbirds web site

11 minutes ago, Wayne P. said:

32 GB is the largest you can use.

Thank you Wayne P

2 hours ago, Skeeter Dan said:

Thanks for the reply. I could not find out anything on Hummingbirds web site

Thank you Wayne P

From the Humminbird website and it includes the Helix, ONIX, and ION series now since this was published before those units were created:

http://www.humminbird.com/Category/Support/FAQ/SDHC_Compatability/

ok thanks again. Walmart has the 32gb for $24.00to $ 26.00 's. I will pick one up wed. or thurs.

On ‎9‎/‎19‎/‎2016 at 8:52 AM, Wayne P. said:

From the Humminbird website and it includes the Helix, ONIX, and ION series now since this was published before those units were created:

http://www.humminbird.com/Category/Support/FAQ/SDHC_Compatability/

An 8 or 16 is going to be plenty large. If you would eventually max out a 32 gig, it will bog down the Helix 5. A maxed out 16 will also. That model has a somewhat slow processor compared to the larger models.

21 hours ago, Wayne P. said:

An 8 or 16 is going to be plenty large. If you would eventually max out a 32 gig, it will bog down the Helix 5. A maxed out 16 will also. That model has a somewhat slow processor compared to the larger models.

To late. I have already bought a 32. I'll get a 8 or 16 next time I go to Walley world. Again Thanks