Power/data cable is for the 400 and 500-Series Fishfinders and Sounders. This cable will not work with Chartplotters. Product : GARMIN POWER/DATA CABLE 400C GPSMAP 400 & 500 SERIES Manufacturer : GARMIN PARTS Manufacturer Part No : 010-10918-00 UPC : 753759067427. Compatible with the following Garmi...

The GPSMAP 421 is a compact chartplotter that features an ultra-bright 4 in (10.16 cm) QVGA color display along with an improved high-speed digital design for increased map drawing and panning speeds. It’s ready to go with a built-in, satellite-enhanced worldwide basemap and an easy-to-use inte...