Use this power cable as another option for powering your fishfinder or GPS unit. Plugs into any standard cigarette lighter receptacle. Also works with the PC interface cable.Compatible with:Fishfinder 100 Fishfinder 100 Blue Fishfinder 140 Fishfinder 160 Fishfinder 160 Blue Fishfinder 160C Fishfinder 240 Fishfinder 240 Blue Fishfinder 250 Fishfinder 250C Fishfinder 340C Fishfinder 90 GPSMAP 168 Sounder GPSMAP 172 GPSMAP 172C GPSMAP 178 Sounder GPSMAP 178C Sounder GPSMAP 185 Sounder GPSMAP 188/188C Sounder GPSMAP 198C Sounder GPSMAP 238 Sounder GPSMAP 292 GPSMAP 298 Sounder GPSMAP 3006C GPSMAP 3010C GPSMAP 392 GPSMAP 398 Sounder GPSMAP 492 GPSMAP 498 Sounder