Review on 🖥️ StarTech.com 4-Port DisplayPort KVM Switch with Audio, Built-in USB 3.0 Hub - 4K 30Hz (SV431DPU3A2) by Christopher Lott

I've never been a fan of HID emulated KVM but this one works. Each connected keyboard/mouse appears as a separate USB device on a "virtual hub" with its own original VID/PID. It even works with my Apple USB keyboard, even though that keyboard has a built-in hub. You can even connect another HID device like a mouse to your keyboard and that will work too! However, you cannot connect a non-HID device such as a flash drive. And yes, it fully supports 2560x1440 ("2K") at 60Hz. In fact, I overclocked it to 80Hz - the limiting factor is my display, not the KVM. UPDATE: Use short high quality DisplayPort cables! Avoid cheap cables or cables longer than 1 meter if you can, especially on the way from the switch to the display. Using longer cables can cause the display to flicker and go blank from time to time.