Atlona AT-RON-4424K HDR HDMI Distribution Amplifier

The Rondo 442 takes one HDMI source and drives two displays from it without giving anything up: 4K/UHD at 60 Hz with 4:4:4 chroma, 18 Gbps of HDMI 2.0a bandwidth, HDCP 2.2, and HDR metadata passed straight through so HDR10, Dolby Vision, and HLG still trigger at the panel. It is the small, unglamorous box that lets a confidence monitor and a main display show the same 4K feed at full rate.

EDID handling is the piece that keeps a two-display setup from negotiating down to the weakest sink: the 442 runs either an internal EDID or a learned one copied from the display you actually care about. Front-panel LEDs report power and signal lock at a glance, and units cascade so a two-output DA can feed further Rondo amplifiers as a system grows. Power arrives on a 2-pin Phoenix connector from the included external 5 V supply, and the chassis mounts with the supplied rack ears or sits on its rubber feet.