Operation Manual

Appendix B: Calculate Recording Capacity
You can calculate the size of hard disk according to the storage time and NVR recording settings. The
formula is as follows in full frame rate condition. Used space per hour (MB/h) = Bitrate(kbps) ÷ 8 × 3600 ÷
1024. The below are the details at different settings.
Resolution
Frame Rate
Bit Rate (kbps)
Used Space(MB/h)
3MP
1080P
30fps (NTSC)
12M
5400
8M
3600
7M
3150
5M
2250
4M
1800
720P
1080P
3MP
30fps (NTSC)
15fps (NTSC)
15fps (NTSC)
6M
2700
4M
1800
2M
900
1M
450
256
113
The calculation format is: Total Recording capacity =Used space per hour (MB/h) (coverage rate of hard disk)
× recording time (hour) ×channel numbers
For instance, one customer sets resolution to1080P, frame rate to 15fps, bitrate to 4M and enables total 4
channels. He wants the unit to record continuously in a month. Below is the calculation:
Total Recoding capacity =900 (mb/h) X 24(hours/day) X30(days) X4 (channels)= 2592000 (MB)=2531.25(GB)
Therefore, customers just install one SATA HDDs with 3TB, it can almost record for one month.
Appendix C: Compatible Devices