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; 128Times replaying speed, 32 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.