Commercial KVM over IP solutions are usually expensive, and one of the reasons PiKVM v3 has been so popular so far is its comparatively low price of just $145 including a steel case. Shipping adds $20 to the US, and $30 to the rest of the world, and backers will not have to wait for too long, as shipping is expected to start in October, a few weeks after the Kickstarter campaign ends. More details may also be found on the official website.

https://pikvm.org/