BearExtender Outdoor High Power USB Wi-Fi Extender for RV and Marine use – Bearifi
Coastal Marine WiFi, a winner! - Panbo
WaveRV - RV - Marine WiFi Antenna - RadioLabs
Amazon.com: TUOSHI 2.4Ghz Outdoor Long Range Wi-Fi Antenna N4000 | 36dBi High Gain USB Wi-Fi Range Extender Antenna for RV & Marine & PCs : Electronics
Wave WiFi Rogue
High power Wifi Booster Marine - Wifi onboard
Wave WiFi MBR, a Swiss Army knife of a boat router - Panbo