Overview Designed for use in Medium sized Businesses, or for Homes & Small Businesses requiring a Professional DVR solution, the Xvision range of DVRs are the best around, with over 100, 000 sold worldwide, they offer the best reliability, features, picture quality & value for your money. Remote Networking & Mobile Phone support are standard & they record using Advanced H264 compression technology, which offers better picture quality than standard H264 DVRs. Records up to 4 cameras Records Cameras in high resolution D1 digital quality using Advanced H264 compression Advanced Motion Detection, Auto Full Screen for Active Cameras & Email Alerts as standard! USB (Universal Serial Bus) port & DVD drive for low cost easy back up to CD or DVD discs Front Panel, IR Remote Control or USB (Universal Serial Bus) Mouse control for ease of use HD resolution VGA port for the best picture quality when using LCDs & Plasmas! E-SATA socket for easy expansion of total recording capacity to 12TB Built in 250GB Hard Drive, for recording times of: Number of images being recorded per camera every second* Picture Quality* Estimated recording times 250GB 500GB 1TB 2TB 4TB 25 (Real Time) High Resolution 2 days 4 days 1 week 2 weeks 1 month 12 Medium Resolution 1 week 5 days 3 weeks 4 days 1 month 3 weeks 3 months 2 weeks 7 months 6 Low Resolution 6 months 1 week 1 year 2 weeks 2 years 1 month 4 years 2 months 8 years 4 months *all settings can be adjusted to suit your need using the DVRs easy to use on screen menu. 2 Year Warranty