The standard Zumo 660 has only 4GB of internal memory, not enough for the newest map set, we have replaced this with 8GB - this is not the SD card size, no SD card is included but you can add one for removable storage. The item "Garmin Zumo 660 Motorcycle Head Unit Special 8GB Internal Memory LifeTime Maps" is in sale since Thursday, August 8, 2019. This item is in the category "Consumer Electronics\Vehicle Electronics & GPS\GPS Units". The seller is "itsnothere" and is located in Mankato, Minnesota. This item can be shipped worldwide.