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A 6.6-foot Thunderbolt cable with USB-C connectors on both ends

SMUGDESK

SMUGDESK Thunderbolt 4 USB4 Cable 6.6FT 40Gbps 100W 8K

SKU CH-91VD-MDT14

A 6.6 ft Thunderbolt cable delivering 40 Gbps data, 100 W charging and single 8K@60 Hz video

Cable Length 6.6 Feet

Style USB4

  • Charge laptops and phones at up to 100W with 20V/5A power delivery
  • Move huge files fast with 40Gbps data transfer speed
  • Drive a single 8K display at 60Hz or dual 4K monitors at 60Hz
  • Works with Thunderbolt 3 and USB4 hosts and peripherals
  • 6ft length gives flexible reach for desk or travel setups

6.6 ft Thunderbolt 4 USB4 cable

This 6.6 ft cable carries Thunderbolt 4 and USB4 signals at up to 40 Gbps. It delivers up to 100 W of power and supports single 8K at 60 Hz or dual 4K at 60 Hz video output. The cord suits users who need high-bandwidth data, charging and display in one connection.

Who this suits and who should look elsewhere

The cable fits owners of USB4 or Thunderbolt 3 and 4 laptops, docks, eGPU enclosures and 8K monitors that accept DP Alternate Mode. Buyers whose devices only offer USB 3.2 Gen 2 ports will not reach the 40 Gbps rate or 8K video. Anyone needing a shorter run for desk tidiness or a longer run for room-scale setups should choose a different length.

Capacity and headroom

At 40 Gbps the link can move roughly 14 hours of HD video or 25,000 HD photos in about one minute when both ends support Gen 3 speeds. The 100 W rating covers most ultraportables and many gaming laptops while driving an external display. Bandwidth drops to 20 Gbps on Gen 2 ports, so dual 4K or eGPU workloads may saturate the link.

Highlights

  • Charge laptops and phones at up to 100W with 20V/5A power delivery
  • Move huge files fast with 40Gbps data transfer speed
  • Drive a single 8K display at 60Hz or dual 4K monitors at 60Hz
  • Works with Thunderbolt 3 and USB4 hosts and peripherals
  • 6ft length gives flexible reach for desk or travel setups

Specifications

No published specifications for this item yet.

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Questions about this item

What charger do I need to get 100W charging through this 6.6FT cable?

A USB‑C charger that supports 20V/5A Power Delivery is required to reach the 100W maximum.

Will this cable run at 40Gbps with a Thunderbolt 3 dock?

Thunderbolt 3 is limited to 20Gbps bandwidth, so the link will operate at up to 20Gbps instead of 40Gbps.

How can I confirm the cable is delivering 8K@60Hz to my monitor?

Check the monitor’s on‑screen menu or OS display settings to verify 8K resolution at 60Hz is active.

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