StarTech.com 2 Port DisplayPort KVM Switch - 4K 60Hz - Single Display - Dual Port UHD DP 1.2 USB KVM Switch with Integrated USB 3.0 Hub & Audio - Dell HP Apple Lenovo - TAA Compliant (SV231DPU34K)

Plug and play, works with a 5120x1440 Quad HD display. I’m extremely pleased with it.

I connect a 4k Dell monitor, das keyboard mechanical, a Corsair gaming mouse, Logitech HD webcam and Audiotechnican USB Mic via this KVMP to an Elitebook 360 via a cheap USB-c targus dock and a Linux host using an Nvidia GTX 780. Occasionally the dock will connect to a Macbook Pro.It just works-- but thank goodness coz the manual is minimalist and their appears to be no way to configure this thing.I had one problem- the gaming mouse would never respond when connected via the HID ports, instead I connected it via the front panel USB3 port. I believe gaming mice and KVM generally don't work, but in this setup it works pretty reliably. Occasionally when switching the mouse won't get recognised, but switching back and forth one more time generally makes it come back to life (I think its Linux drivers as the Windows PC never has an issue).Picture is rock solid and sound gets integrated with the display port from my Windows PC which is really nice, Linux setup slightly different. On both this is something I could configure so not really about the KVM but worth looking in to as it simplifies audio somewhat.Knocked off a start mostly because it doesn't come with cables, which is probably sensible (I connect to minidp ports for example) but means the price is pretty stiff-- it is worth it tho, this thing just works.

I'm using it with a 4K monitor, including audio over DisplayPort, and some USB devices. Haven't tried any USB 3.0 units. It just works, which is what I expect for something in this price range.It's worth noting that it comes with no cables except for the power supply. For me it wasn't an issue since I was replacing an older KVM, but otherwise it'll add even more to the price tag.[Edit, 8 months later] It doesn't work flawlessly, unfortunately: If a DisplayPort is on a low resolution (typically when in BIOS setup or a in a boot loader menu), then switching away and back to it doesn't restore the display. I have to bypass the KVM in these situations to see what I'm doing. Not really ok, but it doesn't happen too often for me so only taking one star off.

HID ports are only for input peripherals. Power cycle is required if changing mouse/keyboard, especially for wireless mouse/keyboard.If you need more standard USB2/3 ports get a USB 3 hub and plug into the supplied USB3 port at the back.