UKs first hot pluggable USB (Universal Serial Bus) DVRMonitors 4-channel video via PCCan be monitored via email & the internet Capable of recording at up to 50 frames per second twice the industry standard but without the hassle of installation. Motion detection & smart search on playback Snapshots are sent to an email address activated on motion detection over the internet Use as VOIP with Skypeand 153 Instant Messaging when used as a webcam 50 fps maximum at CIF resolution quality Access stored data anywhere in world This USB (Universal Serial Bus) 4-channel DVR seamlessly converts your home or office PC or laptop into an industry standard surveillance system. Simply plug into any USB (Universal Serial Bus) 2.0 port making this the UKs first ever hot pluggable USB (Universal Serial Bus) DVR on the market. Upgrading couldnt be simpler either just plug in another USB (Universal Serial Bus) DVR & the software automatically adds another four channels for a maximum of eight cameras with a total of 100fps. All data events are recorded on to multiple HDDs located inside your PC or laptop. These are just some of the great features that make this digital video recorder one of the best on the market. This is one of the easiest ever installations being as it uses USB (Universal Serial Bus) 2.0 it auto detects & installs the drivers meaning all that you need to do is install the software.