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.

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

The HDK202-M24 is the only current catalogue product whose manufacturer explicitly states 4K240 via Display Stream Compression (DSC). 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.

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.

View product

Not compatible

TESmart HKS202-M24

Not supported by published specifications

What this means for you: Its stated high-refresh ceiling is below the required 4K240 mode.

Displays: 2
Video connections: HDMI 2.1
Published 4K ceiling: Single 144Hz · multi 144Hz
USB-C laptop charging: None

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

Product-specific limits

Dual 4K above 120Hz depends on Display Stream Compression (DSC) and the complete GPU, monitor and cable chain.
A Mac needs a separate video output for each display.
It does not charge a USB-C laptop.

View product

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

Prove 4K240 high dynamic range (HDR) and variable refresh rate (VRR) directly from the gaming PC.
Use certified HDMI 2.1 or DisplayPort 1.4 cables for every segment.
Add the KVM and retest the full feature set.
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.

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.