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A black USB-C to DisplayPort cable, 6.6 ft long, straight connectors, matte finish

SMUGDESK

SMUGDESK USB-C to DisplayPort Cable 6.6 ft 32.4Gbps 8K@60Hz 4K@144Hz

SKU CH-5XXP-J4YWF

A USB-C to DisplayPort 1.4 cable delivering 32.4Gbps bandwidth for 8K@60Hz, 4K@144Hz and 2K@240Hz with HDR and multi-stream support

  • 8K 60 Hz clarity backed by 32.4 Gbps bandwidth
  • 4K 144 Hz gaming smoothness via DSC 1.2 compression
  • Thunderbolt 4 and 3 host support with DP Alt Mode
  • Multi-screen MST and MacBook clamshell mode enabled
  • 6 ft cable reaches monitors without signal loss

Cable purpose and audience

This USB-C to DisplayPort cable connects a Thunderbolt 4 or Thunderbolt 3 host to a DisplayPort 1.4 monitor. It targets users who need 8K resolution at 60 Hz or 4K at 144 Hz from a single cable without separate adapters. The 6.6 ft length suits typical desktop setups where the source and display sit on the same desk.

Compatibility fit and limits

The cable works when the USB-C port supports DisplayPort Alternate Mode, making it suitable for recent laptops and desktops with Thunderbolt 4 or Thunderbolt 3. It will not function on USB-C ports that carry only data or power, so buyers without Alt Mode should look at a different connection method. MacBook clamshell operation is supported only while the notebook is connected to power.

Sustained-load behaviour

The link maintains the full 32.4 Gbps HBR3 bandwidth continuously, avoiding screen flicker and audio drop-outs during long sessions. DSC 1.2 compression delivers visually lossless 8K 10-bit HDR without bandwidth throttling. Backward compatibility with DisplayPort 1.3, 1.2 and 1.1 ensures stable operation even when driving multiple 1080p streams through MST for extended periods.

Highlights

  • 8K 60 Hz clarity backed by 32.4 Gbps bandwidth
  • 4K 144 Hz gaming smoothness via DSC 1.2 compression
  • Thunderbolt 4 and 3 host support with DP Alt Mode
  • Multi-screen MST and MacBook clamshell mode enabled
  • 6 ft cable reaches monitors without signal loss

Specifications

No published specifications for this item yet.

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Questions about this item

Does my USB-C laptop need DP Alt Mode for this cable to deliver 8K@60Hz?

Yes, the source device must support USB Type-C DP Alt Mode for the cable to transmit 8K@60Hz or 4K@144Hz over its 32.4Gbps bandwidth.

Will this cable work with my older DisplayPort 1.2 monitor?

It is backwards compatible with DisplayPort 1.3, 1.2 and 1.1, so an older monitor will function at its native resolution and refresh rate.

How can I verify the cable is running at 4K@144Hz after I connect it?

Check your OS display settings or the monitor on-screen menu; they should report 3840x2160 at 144Hz with HDR active if the link is operating at full speed.

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