Support 4G/3G SIM Card;

Support 1PCS upto 6TB HDD or SSD;

Can choose TF Card Slot;

Can choose:
AHD:1*AHD-M/4*AHD-M;
NVR:1*1080P/4*1080P/8*1080P;
HVR:2*AHD-M+2*720P.