The AC7871 HDMI 4K Chainable Receiver must be used in combination with the AC7870 4K HDMI Extender Set. Extend a 4K HDMI signal up to 100 meters with zero latency and a maximum resolution of 4K @ 30Hz. Each chainable receiver has a HDMI output for connecting to a monitor and two CAT outputs for daisy chaining another two chainable receivers with a maximum of 250 receivers and a distance of 2.5km. The AC7871 Chainable Receiver has an integrated mounting bracket.