GW Security 16 Channel
Ultra High Definition 4K (3840×2160) FOUR TIMES the resolution of 1080P! 16 Channel 6K 12MP NVR 4K Security Camera System with (8) H.265+ 4K (8MP) @20FPS Weatherproof 2.8mm Wide Angle PoE IP Dome Cameras (Built-in Microphone)…

Swann NVR Add-On Security
NVR CCTV Add-On Security Camera. Provide extra security to your home or business with Swann’s NVR CCTV Bullet Camera. With 4K Ultra HD video, sound recording with microphone, color night vision up to 32ft, plus black & white vision up to 130ft….

4COVR PoE 16 Camera Security
16 CHANNEL SECURITY CAMERA SYSTEM: This system has 16pcs 5MP 2.8mm fixed lens PoE IP cameras (Not PTZ) with built-in microphone, IP67-rated waterproof for indoor and outdoor use. The 4K 16CH NVR of this system comes with a 4TB hard drive. it has 2 SATA port to expand to total 16TB storage space….

ONWOTE NVR PoE Security
Smart AI Human Vehicle Detection– Reduce false alarms and save storage space….