I bought this card for my GPS device and was unsure whether this is the SDHC can also read. Card and adapter are in an easy-open plastic package - very useful for later storage outside of the unit. My Garmin Oregon 450t has also reading the card no problem. In other words - the Garmin Oregon 450, 450t, 550, and 550t, can be easily operated with this card. Can I recommend for this device.