Swann CONHD A3MP IP POE Security Camera NHD820 NHD-835 Super high definition camera able to generate amazing 3 Megapixels (2048 x 1536 pixels) video images, equivalent to 1200TVL Latest infrared cut filter for amazing night vision to 115ft/35m Built to suit any conditions with weather resistant for indoor outdoor use This camera can only be used in combination with Swann’s Full HD Network Video Recorders including 7090, 7095,CONVR-B3MP, CONVR-C3MP or 7200 ,7250 Series NVR for cutting-edge IP surveillance in full HD This listing is for 1 replacement camera only ,no cables ,no manuals ,no other accessories included. Swann NVR's work only with certain models of cameras. Pls make sure your cameras are compatible with the Nvr before you place the order. If you have any questions send us a message or call Swann customer service 24/7 at phone number 18006272799 Or visit the following link: www.swann.com/media/wysiwyg/docs/swann-camera-compatibility.pdf If you have an used NVR , and if the camera doesn't connect after 2-3 min, please make sure you reset the DVR to the default settings, or release the IP address from the old cameras, otherwise, the camera will not work, because the NVR memorize the IP from the old camera. If you have difficulties with the setup you can also you can call Swann customer service ,free 24/7 at phone number 18006272799, and they are able to help you with the setup. I hope you could leave us positive feedback ,which is very important for the growth of our small business.