Can a MacBook Pro run a 4K 240Hz monitor through a KVM? Check the exact Mac, HDMI or DisplayPort path, Display Stream Compression (DSC), monitor-setting retention (EDID), high dynamic range (HDR) and variable refresh rate (VRR) limits.
Evidence last checked 12 August 2026. Specifications assessed, not physically tested.
Manufacturer confirmed stated in a primary sourceInferred derived conservatively from published specificationsUnresolved the exact combination is not provedEvidence policy
Computer 1MacBook Pro
Computer 2Gaming PC
Display1 × 4K240
Featureshigh dynamic range (HDR) + variable refresh rate (VRR)
ConnectionHDMI 2.1 / DisplayPort 1.4
Main riskMac 4K240 output support
The practical answer
Some recent MacBook Pro models publish a single-display 4K240 mode, and four current catalogue KVMs publish a 4K240 ceiling. That still does not prove the complete setup. Match the Mac's supported output to one KVM video path, then verify Display Stream Compression (DSC), adapter capability, monitor firmware, cable bandwidth, colour depth, high dynamic range (HDR) and variable refresh rate (VRR) end to end.
Product assessments
These statuses apply to this exact configuration, not to the product in every possible setup.
Needs verification
UGREEN DisplayPort KVM Switch 2-in-1-out (8K)
● Published specifications do not prove the complete setup
What this means for you: This is a purpose-built single-monitor DisplayPort 1.4 KVM with a published 4K240 ceiling. UGREEN does not document the compression or Mac-specific high-refresh conditions, and it does not retain monitor-setting retention (EDID), so the complete path remains unproved.
Computers
2
Displays
1
Video connections
DisplayPort 1.4
Published 4K ceiling
Single 240Hz
USB-C laptop charging
None
High dynamic range (HDR): supported · Variable refresh (VRR): not confirmed · Keeps monitor settings (EDID): not supported
Product-specific limits
The manufacturer states 4K240 but does not document the compression, colour-depth or chroma conditions, so the complete high-refresh signal chain still needs verification.
monitor-setting retention (EDID) emulation and hotkey switching are not supported.
DisplayPort cables and the USB-C power supply are not included.
Evidence behind this assessment
7 recorded claims are manufacturer-confirmed, 0 are conservative inferences and 2 remain unresolved. Product evidence last checked 12 August 2026.
● Published specifications do not prove the complete setup
What this means for you: TESmart publishes single-output 4K240 via Display Stream Compression (DSC) with high dynamic range (HDR), variable refresh rate (VRR) and monitor-setting retention (EDID) on the HDMI 2.1 path. The exact Mac output and every cable still need to expose the same 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.
● Published specifications do not prove the complete setup
What this means for you: TESmart now publishes single-output 4K240 via Display Stream Compression (DSC) on this DisplayPort 1.4 model. A USB-C or Thunderbolt Mac needs an adapter that preserves the exact 4K240 mode.
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.
Sources last checked 12 August 2026. Products were not physically tested by KVMChecker. Firmware, host hardware, adapters and cables can change the result.
