Configuration guide

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.

Computer 1M4 Mac mini

Computer 2Windows PC

Display3440×1440 ultrawide

Refresh165Hz

Preferred videoDisplayPort 1.4

Main riskExact ultrawide timing

The practical answer

A DisplayPort 1.4 gaming KVM is the safest current route. The Mac mini and PC must each output 3440×1440 at 165Hz through the chosen adapters, and the monitor must expose the same timing on its KVM-connected input.

Product assessments

These statuses apply to this exact configuration, not to the product in every possible setup.

Needs verification

TESmart DKS202-M24

Published specifications do not prove the complete setup

What this means for you: Its DisplayPort 1.4 path and stated 4K165 Display Stream Compression (DSC) capability are strong indicators, but the exact 3440×1440 165Hz timing is not explicitly guaranteed.

Displays: 2
Video connections: DisplayPort 1.4
Published 4K ceiling: Single 165Hz · multi 144Hz
USB-C laptop charging: None

High dynamic range (HDR): supported · Variable refresh (VRR): supported · Keeps monitor settings (EDID): supported

Product-specific limits

4K144 or 165Hz may require Display Stream Compression (DSC); confirm the GPU, monitor, adapters and cables support it.
Each display requires its own host-side DisplayPort signal.
It does not charge a USB-C laptop.

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Compatible with limitations

AV Access iDock D23

Compatible with stated limitations

What this means for you: The manufacturer explicitly states 3440×1440 up to 165Hz, but this triple-monitor model is oversized for a single-display desk and lacks monitor-setting retention (EDID) emulation.

Displays: 3
Video connections: 3 × DisplayPort 1.4a per computer
Published 4K ceiling: Single 165Hz · multi 165Hz
USB-C laptop charging: None

High dynamic range (HDR): supported · Variable refresh (VRR): supported · Keeps monitor settings (EDID): not supported

Product-specific limits

Each computer must provide three independent DisplayPort outputs; the KVM cannot add missing display streams.
5120×1440 is stated up to 120Hz and 3440×1440 up to 165Hz.
monitor-setting retention (EDID) emulation is not supported, so displays may reconnect and windows may move when switching.
It is designed for desktop PCs rather than a single-cable work laptop.

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Compatibility constraints

Avoid USB-C office KVMs that cap 3440×1440 at 60Hz.
Check whether the Mac adapter preserves high refresh, high dynamic range (HDR) and colour depth.
variable refresh rate (VRR) support on macOS and Windows may differ even when the KVM passes the signal.

Recommended setup sequence

Prove 3440×1440 165Hz directly from each computer to the monitor.
Insert the KVM using the same connector and cable standard.
Enable high dynamic range (HDR) or variable refresh rate (VRR) one at a time and retest.
Confirm display wake and resolution retention after repeated switching.

Technical term unclear? See KVM terms explained for plain-English definitions and practical consequences.

Sources checked

The primary documents supporting the decisive compatibility claims on this page.

Sources last checked 12 August 2026. Products were not physically tested by KVMChecker. Firmware, host hardware, adapters and cables can change the result.