KVMChecker
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.

Evidence last checked 12 August 2026. Specifications assessed, not physically tested.

Manufacturer confirmed stated in a primary source Inferred derived conservatively from published specifications Unresolved the exact combination is not proved Evidence policy
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.

Not compatible

TESmart DKS202-M24

Not supported by published specifications

What this means for you: The current manufacturer page lists 3440×1440 up to 144Hz, below this guide’s 165Hz target.

Computers
2
Displays
2
Video connections
DisplayPort 1.4
Published 4K ceiling
Single 240Hz · multi 144Hz
USB-C laptop charging
None

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

Product-specific limits
  • Single 4K240 and dual 4K144 require Display Stream Compression (DSC); confirm the GPU, monitor, adapters and cables support the target mode.
  • The manufacturer lists 3440×1440 up to 144Hz and 5120×1440 up to 120Hz, so 3440×1440 at 165Hz is above the published limit.
  • Each display requires its own host-side DisplayPort signal.
  • It does not charge a USB-C laptop.
Evidence behind this assessment

7 recorded claims are manufacturer-confirmed, 1 are conservative inferences and 0 remain unresolved. Product evidence last checked 22 August 2026.

View at manufacturer
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.

Computers
2
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.
Evidence behind this assessment

8 recorded claims are manufacturer-confirmed, 0 are conservative inferences and 0 remain unresolved. Product evidence last checked 12 August 2026.

View at AV Access

Different computer, display or refresh rate? Check your exact setup before using a product link.

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

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

Technical term unclear? See KVM terms explained for plain-English definitions and practical consequences. Compare the current 4K and ultrawide KVM timing evidence before relying on a headline resolution.

Sources checked

The primary documents supporting the decisive compatibility claims on this page. Commercial links are kept separate.

Related configurations

Mac + PC + 3440×1440 165Hz ultrawide Mac + PC + 5120×1440 ultrawide Mixed DisplayPort 1.4 + HDMI 2.1 KVM setup

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