The Garmin Navionics+ NSUS007R US East Coast Marine Chart Map MicroSD SD Card is a reliable and high-quality GPS accessory designed for marine enthusiasts. With the Garmin brand reputation and a 1-year warranty, users can trust in the performance and durability of this product. This micro SD card, specifically model 010-C1291-20, provides detailed marine chart maps for the US East Coast, making it a valuable tool for navigation and tracking on the water. Compatible with SD vehicle models, this product is essential for any boating or sailing adventure.