12CH Dual HHD/SSD MDVR, Full HD, 1080P/720P, GPS/Glonass/Baidou, 4G LTE, H.264, USB3.0, 3RS232+2RS485, G-sensor, RJ45, WIFI, Pulse speed, Support Intercom, Dual 4G Sim card, AHD camera, Support: 12*AHD / 8*AHD+4*IPC /4*AHD+8*IPC/ 12*IPC, Mobile DVR/MDVR.