| Product | 4CH HD 720P NVR(Support 1080P Live View) | 9CH HD NVR(Support 1080P Live View) | 16CH 1080P HD NVR | Professional 16CH 1080P HD NVR | |
| Item No. | DR-NVR5004V | DR-NVR5009V | DR-NVR5016V | DR-NVR5016VM | |
| System | Main Processor | High performance embedded microprocessor | |||
| Operating System | Embedded LINUX | ||||
| video | Compression format | H.264 | |||
| Video standard | PAL/NTSC | ||||
| Preview image quality | 720P/960P/1080P | ||||
| Playback image quality | 720p | ||||
| Motion detection | Can setup detection region and multi-level sensitivity | ||||
| Regional cover | Each channel support 4 pcs regional cover block | ||||
| Audio | Compression format | ADPCM | |||
| Two-way intercom | ADPCM | ||||
| Recording | Recording mode | Manual, motion detection, schedule, alarm, and events recording | |||
| Recording storage | HDD and network | ||||
| Recording playback | 4ch 720P simultaneous playback | 9ch 720P simultaneous playback | 16ch 720P simultaneous playback | 16ch 720P simultaneous playback | |
| Backup mode | HDD, DVD RW, USB flash memory | ||||
| Video I/O | Video input | 720P/960P/1080P | |||
| Video output | 1ch VGA , 1ch TV(CVBS) | 1ch VGA output, 1ch BNC output, 1ch HDMI(16ch device) | |||
| Audio I/O | Audio input | No | 9ch | 16ch | 16ch |
| Audio output | No | 1ch | 1ch | 1ch | |
| Others | network | 1 RJ45 port, 10/100M self-adapting | |||
| USB port | 2 USB 2.0 port | ||||
| HDD | Support 2 SATA HDD inside | Support 4 SATA HDD | Support 8 SATA HDD | ||
| Power supply | DC +12V /4A | 450W ATX | |||
| consumption | 20W(not include HDD) | ||||
| Temperature | 0℃－＋55℃ | ||||
| humidity | 10%－90% | ||||
| Size | 1U | 1.5U | 1.5U | 2U | |
