KKVMChecker
Configuration guide

Mac + PC + 5120×1440 ultrawide

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

Computer 1Mac
Computer 2Windows PC
Display5120×1440
RefreshUp to 120Hz
Preferred videoDisplayPort 1.4 / HDMI 2.1
Main riskResolution fallback

The practical answer

The iDock D23 explicitly supports 5120×1440 up to 120Hz. The HDK202-M24 also states 5120×1440 at 120Hz via Display Stream Compression (DSC). Avoid iDock C10 and iDock M10 for this requirement because their manufacturer states that 5120×1440 falls back to 3840×1080.

Product assessments

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

Compatible with limitations

AV Access iDock D23

Compatible with stated limitations

What this means for you: The exact 5120×1440 120Hz mode is listed, but monitor-setting retention (EDID) emulation is not supported and both hosts need suitable DP streams.

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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Needs verification

TESmart HDK202-M24

Published specifications do not prove the complete setup

What this means for you: The exact mode is listed at 120Hz via Display Stream Compression (DSC); verify that the Mac output and adapter support Display Stream Compression (DSC) at this timing.

Displays
2
Video connections
HDMI 2.1 / 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
  • 4K240 and dual 4K144 are Display Stream Compression (DSC) modes, so every device and cable in the signal chain must support the required mode.
  • A Mac needs a separate video output for each display.
  • It does not charge a USB-C laptop.
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Not compatible

AV Access iDock M10

Not supported by published specifications

What this means for you: The manufacturer states that a 5120×1440 display is limited to 3840×1080.

Displays
2
Video connections
2 × USB-C for Mac / HDMI 2.0 / DisplayPort 1.2a
Published 4K ceiling
Single 60Hz · multi 60Hz
USB-C laptop charging
100W

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

Product-specific limits
  • Native dual extended displays use two USB-C ports on a supported MacBook.
  • 3440×1440 is limited to 60Hz and a 5120×1440 display falls back to 3840×1080.
  • The Windows host still needs suitable display outputs for both monitors.
  • high dynamic range (HDR) and variable refresh support are not confirmed in the published specification.
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Compatibility constraints

  • 5120×1440 is distinct from 5K2K 5120×2160.
  • 120Hz operation may require Display Stream Compression (DSC) and certified cables.
  • Loss of monitor-setting retention (EDID) can cause window movement or resolution renegotiation during switching.

Recommended setup sequence

  1. Confirm 5120×1440 at the intended refresh directly from each host.
  2. Prefer DisplayPort 1.4 unless the monitor's HDMI path is equally capable.
  3. Test the KVM with high dynamic range (HDR) disabled first, then add features.
  4. Repeat switching and sleep tests to expose monitor-setting retention (EDID) issues.

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.

Related configurations

Mac + PC + 5120×2160 5K2K ultrawide Mac + PC + 3440×1440 165Hz 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.