KVMChecker
Configuration guide

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.

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 1Gaming PC
Computer 2Work laptop
Display1 × 4K OLED
Refresh240Hz on PC
Featureshigh dynamic range (HDR) + variable refresh rate (VRR)
Main riskDisplay Stream Compression (DSC) and asymmetric hosts

The practical answer

Current manufacturer documentation explicitly states single-output 4K240 via Display Stream Compression (DSC) for both the HDK202-M24 and HKS202-M24. Use one display output and leave the unused second monitor channel disconnected. The work laptop may run at 4K60 while the gaming PC uses 4K240.

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: The product page states 4K240 via Display Stream Compression (DSC) with variable refresh rate (VRR) and high dynamic range (HDR), but the exact GPU, OLED firmware, cable and colour mode must support it end to end.

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 current product page states single-output 4K240 via Display Stream Compression (DSC) with high dynamic range (HDR) and variable refresh rate (VRR), but the exact GPU, OLED firmware, cable and colour mode must support it end to end.

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

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

Compatibility constraints

  • 4K240 requires Display Stream Compression (DSC) and very high link bandwidth.
  • variable refresh rate (VRR) and high dynamic range (HDR) must remain available through the KVM at 240Hz.
  • The laptop can use a lower refresh rate; both hosts do not need identical timings.

Recommended setup sequence

  1. Prove 4K240 high dynamic range (HDR) and variable refresh rate (VRR) directly from the gaming PC.
  2. Use certified HDMI 2.1 or DisplayPort 1.4 cables for every segment.
  3. Add the KVM and retest the full feature set.
  4. Set a conservative 4K60 mode on the work laptop if needed.

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

MacBook Pro 4K 240Hz monitor through a KVM Mixed DisplayPort 1.4 + HDMI 2.1 KVM setup MacBook Pro + Windows PC + dual 4K 144Hz KVM

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