This is a camera cut to lextérieure (IP-66 waterproof housing and robust IK-10, heating, ventilation) that works very well. The full metal housing really inspires confidence, which allows install it in an exposed location. The motorized varifocal is a real plus and offers much more flexibility DInstalling quune fixed focal length. The camera is compatible with Synology Surveillance Station. It can be used on Windows and Linux (with some limitations). The D-Link software is not essential (I have not even installed them).