Original Dahua 8mp 4/8ch 4poe Nvr Mini Nvr4104-p-4ks2/l Nvr4108-p-4ks2/l H.265 4k H.265 Network Video Recorder - Nvr - AliExpress
Dahua Technology NVR4104-P-4KS2 user manual (English - 4 pages)
Dahua NVR DVR Network Video Recorder 4K 4 PoE port NVR4104 P 4KS2 4Ch NVR4108 P 4KS2 8CH Smart Mini 1U Up to 8MP IP Camera|Surveillance Video Recorder| - AliExpress
User manual Dahua Technology NVR2104/2108-4KS2 (English - 416 pages)
User manual Dahua Technology NVR4104HS-P-4KS2 (English - 361 pages)
NVR4204-P-4KS2
Dahua NVR2104HS-P-I2 User manual online [92/447] 1108808