... ArchitectureEmbedded Linux design, dual-core DSP, pure hardware compression, WDT, hard drive storage, VGA HD display, IP network video access;2Video Input4 ... *SATA II interface, support 2*3.5 inch SATA II hard drive, capacity of per tub up to 2T;7Network Interface1*RJ45 ... :4A power supply and mouse;(note: above parameters no contain hard drive); Embedded MINI NVR