Review on Cateck Aluminum USB Switch Selector for 2 Computers Sharing 4 USB Devices - One-Button Swapping, Mouse, Scanner, Printer - USB 2.0 Peripheral Switcher Box Hub - Includes 2 Pack USB A to A Cable by Glenn Cho

Used to switch keyboard and mouse between iMac and Thinkpad Win10 PC. And it works as advertised. Each system recognizes devices within seconds, if not faster. Yes, it has 4 ports and I may have paid too much to only use 2 of them, but I think something will happen if I need an extra one. And if something goes wrong with a port or 2, I have a spare for durability. I bought a cheaper single port product from another vendor but it didn't work with win10 at all. I think you get what you pay for (and now I can use my mouse between the two systems, so all the better).