Data card is basically a USB modem. Some of the products can support data card for video surveillance application. Dynamic location such as vehicle or undeveloped areas like rural village, construction sites, mining area, hill station, estates, farm house, agriculture land, beach, park, tourist place can be brought under surveillance. These locations need to be covered under Mobile network such as GSM / GPRS / CDMA / 2G / 3G or 4G. For e.g. 16 Series & MDM0205 DVR can support this function.