Internal GPS Combo with Side Imaging

<p>The 598ci HD SI Combo features a Best-in-Class brilliant 640V x 640H, 256 color display with LED backlight. Side Imaging® and Down Imaging® sonar with 4000 watts PTP power output, Precision Internal GPS Chartplotting with built-in UniMap™ cartography with a card slot for optional maps and saving waypoints along with a Tilt & Swivel Quick Disconnect mounting system. The design also allows for drop-in replacement capability for competitive in-dash models.</p><p><br />More information on <a href="http://www.humminbird.com&quot; target="_blank">www.humminbird.com</a></p&gt;