Hassan Design provides you with the most advance DVRs, ALL-IN-ONE technology that allows you to connect any type of camera Video signal, AHD, HD-TVI, Analog, and Network IP. Hassan Design also provides the same technology for our Cameras. Our cameras also have ALL-IN-ONE technology that allows the camera to output to any video signal desired such as AHD, HD-TVI, IP & Analog. ALL-IN-ONE Security Camera Solutions are plug and play with any other DVR brand. Our DVRS are able to control PTZ and Motorized zoom lens cameras using the COC technology that means command over coax. Supports 6TB Drive per hard drive bay. watch them remotely using any device, Apple and Windows. CMS support to monitor multiple locations at once and a powerful but simple to use remote view app.