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Disk Space Calculator Use this calculator to estimate approximate disk space needed for your remote surveillance system. 1. Enter number of cameras 2. Select a data rate for compression 3. Enter Disk space to caculate Recording time or enter Recording time to     caculat Disk space 4. Click the Calculate button    5. To calculate again, click on Clear button and repeat Step3 Number of cameras Compression Data Rate     Select a data rate 256 kbps (1440 KB/min, 86 MB/hr, 2 GB/day) 384 kbps (2 MB/min, 129 MB/hr, 3 GB/day) 512 kbps (4 MB/min, 229 MB/hr, 6 GB/day) 768 kbps (6 MB/min, 337 MB/hr, 8 GB/day) 1000 kbps (8 MB/min, 450 MB/hr, 11 GB/day) 1500 kbps (11 MB/min, 632 MB/hr, 15 GB/day) 2000 kbps (15 MB/min, 895 MB/hr, 21 GB/day) 3000 kbps (22 MB/min, 1.3 GB/hr, 32 GB/day) 4000 kbps (30 MB/min, 1.7 GB/hr, 41 GB/day) Disk space  GB Recording time   Days Hours             * Note: the disk space here is for video files only and does not include the necessary space for the operating system and other files. The actual file size may vary depending on the video content and frame rate. ** 1 GB = 1024 MB