Network based DVR for IP Video devices in centralized or distributed applications. Supports digital cameras or video servers over 10/100/1000 Ethernet with performance of up to 480 ips NTSC (400ips PAL) at 320x240, 240 ips at 640x240 and 120 ips at 640x480 resolution. Up to 30ips (NTSC) or 25ips (PAL) per stream. Combines multiplexing, alarm/event detection, audio, text, PTZ control, and video recording with IP video devices. Windows XP Pro OS & 1U rack mount Server - 2.8GHz P4, 800MHz FSB, 1MB L2 cache, 512MB DDR SDRAM (400MHz), 1TB 7.2K RPM SATA hard drive storage, floppy drive, 24x combo CD-RW, mouse, keyboard, audio, 1 serial & 4 USB 2.0 ports, dual GB Ethernet ports. Supports up to 10 Network/Browser/PDA Clients. Video Servers required for analog inputs. OS, application software factory installed & tested. API integration to Velocity.NDVMS.