Do you answer yes the questions below?
You have several computers and think that this is normal?
All your computers must be connected to the same screen?
They should use the same keyboard and mouse?
They can output HDMI/DVI (VGA or Displayport can be converted to HDMI with an adapter)?
It should be simple to switch computer?
Still reading? Good! This is THE thing for you! I have used mine for a few weeks now and it is the the best thing since sliced bread! Why? It works extremely well, it is compact, it has a solid metal case och looks nice. You can switch computer from the keyboard! I doesn't even need a power supply as it uses power from the connected computers. It has 2 additional USB 2.0 ports on the front.
I have connected it to a screen that has a resolution of 2560x1440@75Hz. My computers are running Ubuntu 20.04, Windows 10 and Windows XP. I have kept one input dedicated for temporary connections. I use a USB Keyboard and Logitech wireless mouse.
I have purchased ALOT from Bangood and it has worked well. A few times I have asked questions to their support and they responded within a day and was help full. A few times I have had to pay custom duties (I opt for "Tariff Insurance") after sending the receipt I was refunded for the cost. I always skip the "Shipping Insurance" as it seem pretty pointless. Dont forget to use any Points or discounts!