Audio: 16ch input, 1ch output alarm: 16ch input, 4ch output Gui graphical interface, support pal/ntsc identify automatically; support simple chinese/ traditional chinese/ english/ russian/ japanese; manual/ timing/ alarm linkage/ motion detection recording mode; display on monitor synchronously, with loop output function, can be divided 16channels output to tv wall; 128times replaying speed, 16 channels replaying simultaneously; preview¡¢record¡¢playback and internet access working at the same time; auto protect and auto resume; support ddns, come with two levels domain name, realize static access and management by dynamic ip through the domain name; 4 sata interfaces, support 4 hard disks above 1000gb; with rs485 / rs422, rj45 & usb interface, support ptz control, ie & client view, usb/cd-rw/dvd-rw backup, with remote control, support mouse, come with cms centralized management software. N.W: 10kg G.W: 13.5kg Dimensions: 430(w)x375(w)x90(h) mm