Interesting, I don't know these.

I assume you have a little software on the controlling computer that sends keystrokes over the network, they are received by this device, and sent via usb to the controller computer, simulating a usb keyboard?

Do you have experience with it? How is the latency? Does it work with the macbook trackpad?

I have used IP KVMs to manage remote machines over the years, yes. They are what you described.

The latency is adequate but not on par with a physical keyboard, and latency will depend on network performance.

IP KVMs can and do work with the MacBook trackpad, but as above, performance is not what you would expect from a wired, real-time connection, and you should not expect multi-finger gestures to work unless explicitly advertised.

Understood, thanks for your thoughts!