... 5. Sensor & Alarm HDD Car Black Box with 3G and GPS, Can Work With 4pcs Cameras HDD Car Black Box* H.264 Vehicle ... mega-pixel for 4 channel (1280x1024)*30fps (NTSC)4) Built- in GPS module (Google Map tracking)5) 3G module available, real ... port, 1 RS485 portNetworkRJ45, 10M/100M EthernetWANAvailable; Support external WifiGPSBuilt-in GPS module, GPS information (Google map, driving route, Coordinate, ...