Overview

The Garmin 010-02251-10 is a flush-mount USB SD card reader that brings chart cards and update media out to an easy-to-reach spot at the helm. It accepts up to two full-size SD cards for quick access to charts, software updates, and ActiveCaptain data.

The housing is fully gasketed and rated IPX7 for incidental water exposure, and the body measures 50.8 x 50.8 x 61 mm (2 x 2 x 2.4 in.) excluding the cable. It runs on 4.75 to 5.25 Vdc, uses up to 2.5 W at 5 Vdc, and is specified for operation from -15 to 70°C (5 to 158°F).

Key features

• Holds up to two full-size SD cards so chart regions and update cards can stay loaded and easy to swap.
• Flush-mount form factor with a 2 in x 2 in face footprint for clean installs on crowded dashes.
• IPX7 water rating and fully gasketed, high-impact plastic construction for wet helm environments.
• Connects to a compatible chartplotter via USB; an included USB-C adapter supports GPSMAP 9000 series installations.
• Electrical specs: 4.75 to 5.25 Vdc input, 100 mA typical draw at 5 Vdc, 500 mA max draw at 5 Vdc (2.5 W max).
• Compass-safe distance of 53.3 cm (21 in.) to help avoid magnetic compass interference.

Installation and setup

Plan the mounting spot so the SD slots are reachable when you need to load charts or run updates. For a typical flush install, the cutout is made with a 38 mm (1 1/2 in.) hole saw, then the unit is secured with two screws after drilling 2.7 mm (3/32 in.) pilot holes.

Route the cable with a little slack, keep it away from known interference sources, and install the ferrite bead near the connector. Maintain at least 53.3 cm (21 in.) of separation from a magnetic compass.

Electrical and system integration

This accessory operates on 5 Vdc (4.75 to 5.25 Vdc) and includes an in-line 7.5 A, 42 V fast-acting fuse in the power lead. Keep the fuse holder in place, and follow standard marine practice for protected wiring runs and clean grounds.

Compatibility and fit

The reader connects to the USB port on a compatible chartplotter to make SD cards easier to access at the helm. A USB-C adapter is included for installations that require USB-C, such as GPSMAP 9000 series units.

This is a good match for boaters who update charts regularly, move between regions, or prefer not to pull a display just to reach a card slot. It also helps when the back of the helm is tight or hard to reach once the electronics are installed.

What’s included

• USB card reader
• USB-C adapter cable
• Mounting hardware
• Power cable
• Documentation