NVRs have maximum remote user guidelines.
Below are the comparisons of all current NVRs. It is recommended to put this information into consideration when designing a system.
| NVR | Live unitcast | Search | Backup | Live multicast |
| PRN-4011 | 10 | 3 | 1 | 20 |
| XRN-3010 | 10 | 3 | 1 | 20 |
| XRN-2011 | 10 | 3 | 1 | 20 |
| XRN-2010 | 10 | 3 | 1 | 20 |
| XRN-1610S | 10 | 3 | 1 | 20 |
| XRN-1610 | 10 | 3 | 1 | 20 |
| XRN-810S | 10 | 3 | 1 | 20 |
| XRN-410S | 10 | 3 | 1 | 20 |
| QRN-810 | 10 | 3 | 1 | 20 |
| QRN-410 | 10 | 3 | 1 | 20 |