ULTRA-BRIGHT 5 DIAGONAL QVGA DISPLAY; 234 X 320 PIXELS; NMEA 2000 CERTIFIED FOR SEAMLESS INTEGRATION WITH THE GARMIN MARINE LINEUP; PRELOADED WORLDWIDE MARINE BASEMAP; COMPATIBLE WITH GXM 51 FOR XM RADIO & XM WX SATELLITE WEATHER; BUILT-IN HIGH-SENSITIVITY GPS RECEIVER; OPTIONAL BLUECHART G2 VISION CARDS PROVIDE ENHANCED NAVIGATION FEATURES LIKE AUTO GUIDANCE, SATELLITE IMAGERY, 3-D MARINERS EYE;VIEW & 3-D FISH EYE VIEW; SECURE DIGITAL CARD SLOT; DIM: 5.9H X 6.4W X 2.9D; GPSMAP 541S; WITH DUAL-FREQUENCY TRANSDUCERLength: 11.80Width: 8.60Height: 5.50