Classic Straight USB Cable suitable for the Garmin Zumo 550 with Power Hot Sync and Charge Capabilities - Uses Gomadic TipExchange Technology - Walmart.com
zumo 550 buttons break | Adventure Rider
Replacement rubber power button for Garmin Zumo 450 500 550 spare part right | eBay
Garmin Zumo 550 Original Box *Box Only, No GPS Unit | eBay