KVMChecker
KVM compatibility checker

Find a KVM that works with your setup.

Tell us what you want to connect. KVMChecker checks the setup against manufacturer specifications and makes clear what is supported, what is limited and what still needs verification.

Sketch showing a laptop and mini PC sharing two monitors, a keyboard and a mouse through a KVM switch.
21KVM products checked
23Apple host profiles
Source-basedBased on manufacturer specifications
Clear limitsUnverified setups are marked clearly
Recommendations are based on manufacturer specifications. Products are not physically tested, and affiliate links never affect compatibility verdicts. Read the methodology.

Your setup

Start with the requirements that matter most.

What's this?

The computer itself sets the maximum number of displays it can drive. Choosing Mac reveals model-specific checks; choosing Windows lets you describe the actual video outputs instead of guessing from the operating system.

Add PC output details for a more confident result
Video outputs available
What's this?

Count outputs that the laptop or graphics card can use at the same time for separate desktops. Two sockets do not always mean two independent displays, so check the computer or GPU specification if unsure.

What's this?

Choose four only if the same keyboard, monitors and mouse must control four computers. A four-port KVM can still be used with two computers, but a two-port KVM cannot switch four.

What's this?

Resolution is the number of pixels in the picture. Use the monitor's native resolution. Higher or wider resolutions need more signal bandwidth and may reduce the available refresh rate.

What's this?

Choose the socket your computer will use to send video into the KVM. The version, such as HDMI 2.1 or DisplayPort 1.4, controls how much resolution and refresh rate it can carry. Connection terms explained.

What's this?

Refresh rate is how many times the picture updates each second. 60Hz is enough for ordinary office work. Choose 120Hz or more for especially smooth motion or high-refresh gaming.

What's this?

Some KVM docks can charge a laptop through the same USB-C cable used for video and data. Ignore this if you are happy to keep using the laptop's normal charger.

What's this?

Select this for a high-resolution webcam, external drive, capture device or other peripheral that moves a lot of data. A keyboard, mouse or basic USB audio device normally does not need it.

What's this?

VRR lets a gaming monitor match the computer's changing frame rate, reducing tearing and judder. G-Sync and FreeSync are common forms. Ignore it for ordinary office use.

What's this?

HDR can show a wider range of brightness and colour on a compatible display. Select it only if you use HDR games or video and want the KVM to preserve that mode.

What's this?

EDID emulation helps each computer remember the monitor's resolution and layout while you switch. Without it, displays may reconnect or windows may move around. You can usually ignore it if that would only be a minor annoyance.

Results use public manufacturer specifications. Unproven combinations are marked “Needs verification” rather than guessed. KVM terms explained.

Ranked results

Choose a setup

21 products checked
Set your requirementsChoose the setup on the left, then run the compatibility check. Each result explains the practical consequence, not just the technical specification.

A 4K KVM can still be the wrong KVM.

The advertised 4K mode may cover only one monitor, at one refresh rate, over one type of connection. KVMChecker checks the computers, displays and features in your setup, then marks anything the specifications do not prove.

Display path

Can it carry the number of monitors, resolution and picture smoothness you selected?

Mac behaviour

Will two monitors extend your desktop independently, or only mirror the same picture?

Desk features

Will laptop charging, high-speed USB, gaming features and monitor-setting retention work?

Read the full KVMChecker methodology →

Configuration guides

20 focused answers for specific Mac, PC, laptop, ultrawide and high-refresh setups.

Compare the evidence. Open the 21-product specification index →Using a Mac? Compare native display support across 23 Apple silicon profiles →High refresh? Compare 4K and ultrawide timing evidence →

MacBook Air M4 + gaming PC + dual 4K monitors

How to switch an M4 MacBook Air and gaming PC across two 4K60 displays without falling into the macOS Multi-Stream Transport (MST) mirroring trap.

View setup analysis

MacBook Pro + Windows PC + dual 4K 144Hz KVM

Can a MacBook Pro and Windows PC share two 4K 144Hz monitors? The host-output, Display Stream Compression (DSC), adapter and cable requirements that decide it.

View setup analysis

Mac mini M4 + PC + 3440×1440 165Hz ultrawide

A direct high-refresh ultrawide route for an M4 Mac mini and PC, without relying on a 4K60 office KVM.

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Two USB-C laptops + dual displays: topology and charging checks

How to qualify two USB-C laptops for dual displays before choosing charging wattage, with the Multi-Stream Transport (MST) and port-capability checks that decide whether one-cable switching works.

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Mac + PC + 5120×2160 5K2K ultrawide

Why a 5K2K ultrawide needs an exact resolution check instead of a generic 4K or 8K label.

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4K 240Hz OLED + gaming PC + work laptop

How to preserve 4K240 on a gaming PC while sharing a 4K OLED with a lower-bandwidth work laptop.

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Two desktop PCs + dual 4K + high-bandwidth USB

A dual-4K desktop KVM setup for two PCs sharing a webcam and USB audio, with connector choice and USB 3.x bandwidth treated separately.

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Mac dual extended displays through a KVM

The practical difference between native display streams, Multi-Stream Transport (MST) mirroring and DisplayLink when a Mac shares two monitors.

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KVM with 100W USB-C laptop charging

Which current KVMs genuinely support 100W-class laptop charging and what additional power hardware they require.

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Three monitors + gaming PC + work laptop

A triple-monitor KVM setup where the work laptop or dock, not the KVM, is usually the first compatibility limit.

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MacBook Air M4 + gaming PC + 4K144 monitor

A one-monitor 4K144 setup that preserves gaming features while keeping the M4 MacBook Air connection practical.

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Mac mini M4 dual monitors through a KVM

How to connect an M4 or M4 Pro Mac mini to a dual-monitor KVM, using two native video outputs without an unnecessary Multi-Stream Transport (MST) dock.

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MacBook Pro 4K 240Hz monitor through a KVM

Can a MacBook Pro run a 4K 240Hz monitor through a KVM? Check the exact Mac, HDMI or DisplayPort path, Display Stream Compression (DSC), monitor-setting retention (EDID), high dynamic range (HDR) and variable refresh rate (VRR) limits.

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Two Windows laptops + dual 4K + 100W charging

An exact two-Windows-laptop target with dual 4K60, symmetric 100W-class charging and the required DisplayPort 1.4 Multi-Stream Transport (MST) host capability.

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Mac + PC + 3440×1440 165Hz ultrawide

A high-refresh ultrawide KVM route for a Mac and PC, with the exact timing and adapter checks that matter.

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Mac + PC + 5120×1440 ultrawide

A 32:9 super-ultrawide KVM setup where 5120×1440 must be named explicitly in the product specification.

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Four computers + three DisplayPort monitors

A four-computer, three-monitor DisplayPort topology where every host must supply three independent signals and high-refresh modes need complete-chain verification.

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MacBook + desktop PC + dual 4K creator peripherals

A MacBook-and-desktop dual-4K setup that preserves native extended displays while switching a webcam and USB audio interface.

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Mixed DisplayPort 1.4 + HDMI 2.1 KVM setup

How to avoid adapter and feature loss when one computer or monitor path is DisplayPort 1.4 and the other is HDMI 2.1.

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Thunderbolt 4 KVM for Mac + Windows PC

When a Thunderbolt 4 KVM is the right answer for a Mac and Windows PC, and when a conventional video KVM is simpler.

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