Key Features 
An HDMI USB extender that works over a LAN allows you to transmit HDMI video and audio signals over long distances  by using a network cable instead of traditional HDMI cables.
Long Distance Transmission: You can extend HDMI signals up to 60 meters over a standard Ethernet cable.
Audio and Video: Transmits high-definition video and multi-channel audio (HDMI 1.4, 2.0, etc.).
Plug and Play: Generally no drivers are required, making installation straightforward.
LAN Compatibility: Uses Cat5e or Cat6 network cables, which are more flexible and cheaper than HDMI cables for longer distances.
USB Functionality: If the extender also supports USB functionality, it can transmit USB data (for devices like touchscreens, cameras, or USB keyboards) over the same network cable.
 
Benefits:
Cost-effective: Ethernet cables are often cheaper and easier to handle than HDMI cables.
Convenience: One network cable can carry both video/audio and USB signals.
Scalability: Easier to extend or move the connection compared to HDMI cables, especially in large spaces or between floors.