Water Proof Bulkhead USB cable- Allows for running USB cable through trailer wall.
Swift Waterproof USB Type-C Connectors - Amphenol LTW | Mouser
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Amazon.com: Quick Charge 3.0 Dual USB Charger Socket, Qidoe Waterproof 12V USB Outlet 36W Dual QC3.0 USB Power Socket with Touch Switch DIY Car USB Port for Car Boat Marine RV Motorcycle
USB 3.0 Water & Dust Proof Connections Systems | Newnex
Scanstrut ROKK SC-USB-02 Charge+ Waterproof USB Socket - Dual Port [SC-USB -02]
FUSION USB Connector w/Waterproof Cap – Crook and Crook Fishing, Electronics, and Marine Supplies
2PCS Dual USB Port Car Fast Charger Socket Power Outlet Panel Mount Waterproof | Being Patient
KurveyGirl USB MINI-B Waterproof Cable - 2m
Amazon.com: USB 2.0 Connector Dual USB Port Male Plug with Cable + Circular Female Socket with Cap Outdoor Waterproof IP67 Panel Mount Extension Wire USB Aviation Connector Data Transfer : Electronics