I bought this product on eBay for my 76csx. And it worked showing just a few updates as compared to the 2007 version. >>>> HUS030R HXUS030R Southeast Caribbean Garmin Bluechart g2 010-C0731-20 v2015.5

This is the micro SD card Version. And not the "Garman DataCard " which fits other products and is also found on eBay

I guess I am saying you are looking for a garman map on a microsd
Card and not the map on a garman data card