RGBlink ASK nano 4K Wireless HDMI Extender

The ASK nano 4K sends HDMI over a built-in 5GHz link instead of a cable run, with a line-of-sight range up to 20 meters and about 0.1 seconds of latency, low enough for a meeting room presenter to click through slides without a visible lag. It takes up to 4K30 into the transmitter and outputs up to 4K60 from the receiver, and it is plug-and-play: no drivers or software to install on either end.

The standard kit pairs one transmitter with one or two receivers for mirrored or extended display to multiple screens, and a single transmitter can drive up to four receivers at once for simple one-to-many casting. The USB-C version flips that around for a multi-presenter room: up to four transmitters share one receiver with one-key switching between them, and each transmitter powers itself straight off the source laptop's USB-C port, so there is no separate power brick to carry.