AV Extenders and USB Hubs

Kit, transmitter or receiver: what completes the link

An extender works as a pair: a transmitter at the source and a receiver at the display. Listings marked transmitter or receiver are one half, while a kit includes both, so check which you are buying. Wired kits send the signal over Cat5e or Cat6 cable, and some VGA kits give local and remote outputs. Wireless kits skip the cable but depend on line of sight and a quiet 2.4 or 5 GHz band. Point-to-point extenders need a direct cable and usually will not pass through a network switch.

Real-world reach, and the hub-style listings

The distance on the box is usually the best case, often quoted for 1080p. At 4K the safe run is normally shorter, so compare the figure for your resolution and use solid copper cable rather than copper-clad aluminum. Some listings here are really USB hubs sold under an extender name. For those, count the ports and read the speed: a 10 Gbps figure is shared by every port on a single connection to the computer, and a power delivery rating only matters if the laptop needs charging through the hub.

Questions about AV Extenders and USB Hubs

How far can an HDMI extender run over Cat6?

It depends on the model and the resolution. Quoted ranges run from tens of meters to well over 100 m, and the 4K figure is normally lower than the 1080p one. Use the number for your resolution and leave some margin.

Can an extender pass remote-control signals?

Only if the listing says it supports infrared pass-through, USB or control pass-through. Without it, the remote works only when pointed at the source or display itself. Check for an IR sensor and emitter in the kit contents.

Will a wireless HDMI extender add lag?

Yes, a small delay is normal. It matters for gaming or live mixing but not for slides or video playback. Interference from other 2.4 and 5 GHz devices, and walls between the two units, can also cause dropouts.