I have been trying to update my Garmin Nuvi 1450 with the latest maps for quite some time with no success.  I had a 2GB Micro SD card installed in the Nuvi that showed a sufficient amount of free space to allow the update, but it would never complete the download.  On an off chance I ordered this Micro SD and it worked perfectly the first time.  I have no idea why the old card would not work, but now it doesn't matter.  For the low price and free shipping, this is a great deal.