The 4 Channel DVR is the ideal system for safety and surveillance. Designed specifically for home, office, or shop use, owners can enhance their security with an easy installation of this system. Features: 4 channels video input in one card with a maximum display/recording rate of 25/30 fps in PAL and NTSC formats respectively 4 screen display mode Multi-Alarm triggering method for sensor, motion, video loss, and hard drive space shortage MPEG4 format with 5 levels of adjustable recording quality Supports multi-channel playback, extensive search functionality Supports remote surveillance and PTZ control through web browser as well as dynamic domain name Auto reboot function to prevent PC deadlocking Software CD-Rom for driver and application Specifications: System Requirements: OS: Windows XP/VistaProcessor: Intel Pentium 4 CPU 1700MHz or better HDD Space: 80GB Memory: 256MB Microsoft DirectX 9.0C or better USB Port and Audio Card