The 597ci HD Combo features an industry best, brilliant, color 640V x 640H 5" display with LED backlight. Dual Beam PLUS SONAR with 4000 Watts PtP power output, 50 Channel internal GPS Chartplotting with built-in UniMap cartography, a card slot for maps and saving waypoints and a Tilt & Swivel Quick Disconnect Mounting System. The new design also allows drop-in replacement capability for competitive in-dash models. Maximize your angling experience with the Humminbird 597ci HD fishfinder GPS system.