ULTRA-BRIGHT 5 DIAGONAL QVGA DISPLAY; 234 X 320 PIXELSOVER 800 NITS OF BRIGHTNESS; NMEA 2000 CERTIFIED FOR SEAMLESS INTEGRATION WITH THE GARMIN MARINE LINEUP; PRELOADED WORLDWIDE MARINE BASEMAP; COMPATIBLE WITH GXM 51 FOR XM RADIO AND XM WX SATELLITE WEATHER; BUILT-IN HIGH-SENSITIVITY GPS RECEIVER; OPTIONAL BLUECHART G2 VISION CARDS PROVIDE ENHANCED NAVIGATION FEATURES LIKE AUTO GUIDANCE, SATELLITE IMAGERY, 3D MARINERS EYE;VIEW & 3D FISH EYE VIEW; SECURE DIGITAL CARD SLOT; DIM: 5.9H X 6.4W X 2.9D; GPSMAP 541; WITHOUT DUAL BEAM TRANSDUCERLength: 11.50Width: 8.40Height: 5.30