The Flir Multi-format MPX 16CH 4K HD Security System is the ideal solution to upgrade to 4K Ultra HD resolution using coax cabling**. With support for up to 4K HD resolution MPX cameras and standard analog cameras, the DVR is ideal for retrofit applications. Multi-format MPX also facilitates advanced features previously unavailable over a coax cable including duplex transmission for PTZ control, audio transmission, and extended distance cable runs up to 1000ft (4MP), 500ft (4K). Our free Flir Cloud apps provide easy remote access anywhere you go via iOS, Android, PC or Mac.