12MP 4K Nexus RGB Turret IP Security Camera System with Pro 8 Channel PoE NVR & 2TB HDD Number of Cameras:6 For PTZ cameras you need

For PTZ cameras you need this PoE+ switch

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The system includes up to 16 Nexus 4MP Smart Light Bullet cameras

The 8-channel NVR supports up to 8 cameras and features 8 built-in PoE ports for simple plug-and-play installation

12MP 4K Nexus RGB Turret IP Security Camera System with Pro 8 Channel PoE NVR & 2TB HDD Number of Cameras:6 For PTZ cameras you need8 Channel Pro 12MP RGB Turret Security Kit This complete 8 channel NVR security kit delivers reliable, professional grade protection right out of the box. The system includes up to 8 Nexus 12MP RGB Smart Light Turret cameras, a pre installed 2TB hard drive for local recording, and CAT5E cables for simple plug and play setup. The Montavue Nexus Pro 8 Channel NVR features 8 built in PoE ports and two hard drive bays that can each support up to 12TB,