KVMChecker
Configuration guide

MacBook Air M4 + gaming PC + 4K144 monitor

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

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 MacBook Air
Computer 2Gaming PC
Display1 × 4K144
Featureshigh dynamic range (HDR) + variable refresh rate (VRR)
PowerSeparate Mac charger
Main riskMac adapter bandwidth

The practical answer

Use a high-bandwidth HDMI 2.1 or DisplayPort 1.4 KVM and connect the MacBook Air through a certified USB-C video adapter. One monitor avoids the Multi-Stream Transport (MST) and multi-display problem; the remaining issue is whether the Mac adapter exposes 4K144 with the required colour and high dynamic range (HDR) mode.

Product assessments

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

Needs verification

TESmart HDK202-M24

Published specifications do not prove the complete setup

What this means for you: It has ample single-display 4K bandwidth plus high dynamic range (HDR) and variable refresh rate (VRR), but the Mac adapter and monitor timing still need confirmation.

Computers
2
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.
Evidence behind this assessment

8 recorded claims are manufacturer-confirmed, 1 are conservative inferences and 0 remain unresolved. Product evidence last checked 12 August 2026.

Do not treat this as a purchase verdict. Confirm the unresolved host, adapter, cable and display path first.

View at manufacturer
Needs verification

TESmart HKS202-M24

Published specifications do not prove the complete setup

What this means for you: The HDMI 2.1 route reaches 4K144 through Display Stream Compression (DSC); verify the Mac adapter preserves that mode.

Computers
2
Displays
2
Video connections
HDMI 2.1
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 4K above 120Hz depend on Display Stream Compression (DSC) and the complete GPU, monitor and cable chain.
  • The manufacturer lists 3440×1440 up to 144Hz and 5120×1440 up to 120Hz on a single output.
  • A Mac needs a separate video output for each display.
  • 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.

Do not treat this as a purchase verdict. Confirm the unresolved host, adapter, cable and display path first.

View at manufacturer
Needs verification

TESmart DKS202-M24

Published specifications do not prove the complete setup

What this means for you: A suitable USB-C-to-DisplayPort 1.4 adapter can provide the cleanest connection, but Display Stream Compression (DSC) support must be end to end.

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.

Do not treat this as a purchase verdict. Confirm the unresolved host, adapter, cable and display path first.

View at manufacturer

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

Compatibility constraints

  • The MacBook Air does not gain USB-C charging from these desktop KVMs.
  • 4K144 may require Display Stream Compression (DSC) depending on colour depth and link mode.
  • variable refresh rate (VRR) availability on macOS may differ from Windows even when the KVM supports it.

Recommended setup sequence

  1. Test 4K144 directly from the Mac through the intended adapter.
  2. Test gaming-PC high dynamic range (HDR) and variable refresh rate (VRR) directly.
  3. Insert the KVM and repeat both tests.
  4. Use separate USB-C charging for the MacBook Air.

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. Commercial links are kept separate.

Related configurations

MacBook Air M4 + gaming PC + dual 4K monitors MacBook Pro + Windows PC + dual 4K 144Hz KVM 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.