Each here works with one monitor (see below for some dual-monitor suggestions) and allows you to switch among two or four PCs using one set of peripherals. They all use HDMI cables (instead of VGA or DisplayPort, although you can definitely find KVM switches that use those). Most newer computers and monitors connect via HDMI for superior sound and image quality. For the least hassle, you'll want to choose a KVM that works natively with the video outputs of all connected PCs (assuming they all support one in common!) to avoid having to deal with clumsy adapters.

USB-C input connectivity for 4K Video, Audio, Data, and Power (Video, Audio, Data and Power over a single USB-C connection) The Vowish USB-C KVM switch is among the few devices supporting 8K@60Hz video. It can host two computers and has two additional USB-C power pass-thru ports that support 100W Power Delivery per host, making it a hard-to-resist deal. Includes an adjustable lamp cooldown mode to avoid prematurely powering up a projector after shutdown If you’re using multiple monitors, you should buy a switch that can transition between monitors. In that case, you might have to settle for a lower resolution or response time, or the switch will be too slow. CompatibilityThe device supports two hosts via the USB-C ports, providing a combined Power Delivery of 135W. While the active host receives 90W, the inactive host receives 45W Power Delivery. StarTech.com uses a 180W external power adapter to support this, which connects to a DC pin next to the Power Switch. If you're looking for a four-PC-capable KVM switch and choosing between this one and the Tcnewcl, the biggest difference is that this one has four USB ports for peripherals instead of the Tcnewcl's three. That's a lot of additional value for only a few extra dollars. USB Ports for Peripherals: Four (reserve two for keyboard and monitor; the others for items like a USB headset) The switch has one HDMI port and supports 4K@60Hz video. Further, each input port has an EDID emulator that informs the host about the display settings, allowing it to tweak the video signals to give you ideal picture quality. The VT4950 uses a 230W external power adapter to power up the device and provide Power Delivery to both host computers. Combined with an impressive selection of sharable ports that include two USB-A 10Gbps ports, the VT4950 is a bulky device that will need considerable space at your workstation. Ports

Most of us begrudgingly accept that switching between or among several computers requires some amount of cable swapping, moving devices around, or other general awkwardness. But with a KVM switch (the KVM short for “keyboard, video, mouse”), you can leave those bothers behind and save time, space, and money. Not to mention, a whole lot of hassle. Supports USB-C Power Delivery 3.0 for laptop charging up to 85W (Additional USB-C Power Adapter is needed)*

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Something you should consider when shopping for a USB switch is what type of USB ports it supports. The most commonly supported ports are USB 2.0 and USB 3.0. The latter is the superior version as it has a better transfer rate than the previous.