Just upgraded to bigger units. Nice little unit. Trolling motor bracket mount (see pics) only. Used but works fine. Transducer cable where small pinched were evident were repaired and heat sealed. Performs fine. The 587ci HD DI Combo features a brilliant color 640V x 480H, 256 color, 4.5" display. Down Imaging sonar with 4000 watts PTP power output, precision internal GPS Chartplotting with built-in UniMap cartography, 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. Maximize your angling experience with the Humminbird 587ci HD DI Combo.Humminbird 587ci HD ComboBuilt-in Devices: GPSDisplay Color: 256 Colors (8-bit)Input Voltage: 10 V DC, 20 V DCDisplay Resolution: 640 x 480Display Color: 256 Colors (8-bit)Input Voltage: 10 V DC, 20 V DCMount Type: Removable/AdjustableTransducer: Trolling Motor MountScreen Size: 4.5"