Rebelcell USB Adapter Duo - M8 Connectors to 2 x USB Colour:Default Dual-Frequency (50/200 Khz) Sonar Capable:

Dual-Frequency (50/200 Khz) Sonar Capable: Yes

However the PVPWp versions retain the slimline design and offer enhanced protection to IP65 (not connectors)

Garmin ECHOMAP PLUS 95sv

Power: 6A isolated

Rebelcell USB Adapter Duo - M8 Connectors to 2 x USB Colour:Default Dual-Frequency (50/200 Khz) Sonar Capable:2 USB connectors: for simultaneous charging of smartphone and tablet. Splash waterproof with protection: suitable for outdoor use. Automatically shuts down during short circuit high temperature over voltage under voltage. Easy connection: Faston connectors (model A) or M8 (model B) for easy connection to the battery. Warranty: Two years Dual USB Adapter cable with M8 connectors (for all 12V batteries with M8 battery terminals) to easily charge