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Compact USB-C to HDMI 2.1 adapter in matte black finish

FLEANE

FLEANE 48Gbps USB-C to HDMI 2.1 Adapter 8K@60Hz 4K@240Hz HDR Thunderbolt

SKU CH-4KP2-KE3YW

Connects USB-C devices to HDMI 2.1 displays at 48Gbps for 8K 60Hz or 4K 240Hz HDR video

  • TypeHDMI Adapter
  • 8K 60 Hz visuals via HDMI 2.1 48 Gbps bandwidth
  • 4K 240 Hz gaming on M3 Pro/Max M4 chips
  • Mac-optimised firmware unlocks 4K 120 Hz on M1 M2 M3
  • Thunderbolt 5 laptop compatibility for future-proof display links
  • Unidirectional USB-C to HDMI adapter for plug-and-play simplicity

Mac-Optimised Display Adapter

The FLEANE USB-C to HDMI 2.1 adapter delivers 48Gbps bandwidth for Mac users seeking high-refresh external displays. Custom firmware enables 4K at 120Hz on M1, M2 and M3 chips and 4K at 240Hz on M3 Pro, M4 and M4 Pro chips. It connects 8K at 60Hz monitors to Thunderbolt 3 or 4 laptops, smartphones and tablets.

Thermals and Power in Use

The compact dongle draws power directly from the host USB-C port with no external supply required. Passive aluminium casing dissipates heat during sustained 8K60 or 4K240 output, keeping surface temperatures comfortable during long editing or gaming sessions. No fan means silent operation in quiet studios or living-room setups.

Bundled Firmware Advantage

Pre-loaded Mac-specific firmware removes the need for manual driver installs on macOS, enabling plug-and-play HDR and RGB 4:4:4 colour at the highest supported refresh rates. The same hardware works on Windows Thunderbolt hosts, but the firmware tune is what unlocks the advertised 240Hz ceiling on Apple silicon.

Highlights

  • 8K 60 Hz visuals via HDMI 2.1 48 Gbps bandwidth
  • 4K 240 Hz gaming on M3 Pro/Max M4 chips
  • Mac-optimised firmware unlocks 4K 120 Hz on M1 M2 M3
  • Thunderbolt 5 laptop compatibility for future-proof display links
  • Unidirectional USB-C to HDMI adapter for plug-and-play simplicity

Specifications

TypeHDMI Adapter

Questions about this item

How do I install the adapter on my Mac and what step is often missed?

Plug the USB-C end into a Thunderbolt port on the Mac, then connect an HDMI 2.1 cable to the adapter and your display; the step often missed is ensuring the Mac model supports the target refresh rate — M1/M2/M3 chips reach 4K@120Hz while M3 Pro/Max and M4 series reach 4K@240Hz.

What maintenance or replacement will this adapter need over time?

No scheduled maintenance is required; if the HDMI cable wears or the USB-C connector loosens after repeated insertion cycles, replace the cable or the adapter itself.

What limit appears first during sustained 8K@60Hz or 4K@240Hz output?

The 48Gbps bandwidth ceiling of the HDMI 2.1 link is the first hard limit; thermal throttling in the host Thunderbolt port may also reduce sustained throughput before the adapter itself fails.

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