Note:1.This product power from POE, need to connect with a 802.3AF Standard 48V POE Switch.2.This camera default 3MP & H.265, if your NVR do not support 3MP or H.265, you can change our camera into 1080P (2MP) and H.264. * High Resolution 3.0 Megapixel 1/3” CMOS Sensor* 2304*1296P resolution 20fps* HD 3.0MP 3.7mm