The PSAP-2USB is a dual input waterproof powersports accessory plug for source units that allows easy to access to the USB rear inputs. MAXXLINK quality and tested. Features: • Compatible Vehicle Fitment: Universal • Compatible Product Models: MB Quart and Universal Source Units • Marine Grade Protection / IPX Rating: Built in rubber seal and front cover protect connections from the elements • Installation: Universal installation for typically used in dash mount applications.