How much Surveillance Video will my Hard Drive Take? : eBay Guides

What is the difference between a Digital Video Recorder (DVR) Capture Card vs. an Analog "VCR" based video surveillance system?

The Digital Video Recorder (DVR) Capture Card system records high resolution digital images to a hard disk drive (HDD) and eliminates the requirement of maintaining VHS tapes. Since the video images are stored digitally, the image quality will not degrade overtime, as would a VHS tape when recorded over multiple times. The time saving intelligent search capabilities of a DVR will enable the user to locate the desired video clips via user defined parameters (camera, time, date, etc.) vs. Fast Forward and Rewind functions of a VCR.


What is a DVR Capture Card?

DVR Cards enable the user to convert their computer into a Digital Video Recorder. The DVR Card(s) is typically installed in an available PCI slot of a computer. DVR cards are bundled with video surveillance software which allows the user to record and display multiple cameras simultaneously from the camera site or a remote location.

How long will a DVR Capture Card record for?

This will depend on the speed of the capture card and the size of the hard drive. Here are some examples

Estimated hours of recorded video that will fit on a hard drive


                                  
A 30 Frames per Second DVR capture Card fully recording
4 cameras at 7.5 frames per second for each camera
 320 hrs     will require   80 GB's of hard drive capacity
 480 hrs     will require  120 GB's of hard drive capacity
 960 hrs     will require  240 GB's of hard drive capacity
 440 hrs     will require  360 GB's of hard drive capacity
1920 hrs    will require  480 GB's of hard drive capacity
3840 hrs    will require  960 GB's of hard drive capacity



A 120 Frames per Second DVR capture Card fully recording
4 cameras at 30 frames per second for each camera
   80 hrs     will require    80 GB's of hard drive capacity
 120 hrs     will require  120 GB's of hard drive capacity
 240 hrs     will require  240 GB's of hard drive capacity
 360 hrs     will require  360 GB's of hard drive capacity
 480 hrs     will require  480 GB's of hard drive capacity
 960 hrs     will require  960 GB's of hard drive capacity

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