GVO Marine Electronics: We provide reliable, safe online shopping 24 hours a day, 7 days a week throughout the U.S. and the world. We are strongly committed to providing our customers with top quality merchandise and world class service. Model 40574 Quick Release Mount for echo? 200, 500c 550c Compatible with echo 200, 500c and 550c, this replacement mount features tilt/swivel capabilities for optimum viewing. With the mount's quick cable disconnect feature, you can plug the necessary cords directly into the mount, allowing you to seat/unseat your device with ease. GVO Marine Electronics: Get the item you ordered or get your money back. Covers your purchase price and original shipping.