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HD-SDI CCTV DVR Hard Drive Calculator

HD-SDI CCTV DVR HDD CalculatorThis online hard drive calculator is used to plan hard drive size and Internet bandwidth speed requirements for Viewtron HD surveillance DVRs and hybrid HD-SDI / CCTV DVRs. The calculator allows users to input the number of HD-SDI cameras and CCTV cameras being planned for use at a video surveillance system installation. Users specify the number of HD cameras, number of CCTV cameras, resolution, frame rate (FPS), and image quality setting that will be used and the calculator lets the users know the required hard drive size for one minute, one hour, one day, and one month of recording. The required bandwidth specifies the upload speed required of the Internet connection that the DVR will be connected to.

This calculator is also available in the CCTV Camera Pros mobile app for iPhone, iPad, and Android devices in CCTV Camera Pros mobile app.  The mobile app makes it easy for installers to take all of our online tools with them anywhere.

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HD-SDI Cameras

HD-SDI cameras
Video Resolution
Frame Rate (FPS)
Video Quality

CCTV Cameras (SD)

CCTV Cameras
Video Resolution
Frame Rate (FPS)
Video Quality


Required Hard Drive Size



Required Internet Bandwidth

NOTE: To be safe, users should add an additional 5-10% of hard drive space.

About This Tool

This was created by for CCTV Camera Pros. CCTV Camera Pros is a direct supplier of video surveillance equipment for home, business, and government. Mike Haldas is the co-founder of CCTV Camera Pros and a USMC veteran. If you have any questions about planning a video surveillance system, please contact Mike at


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