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A 3.3 foot USB cable with USB-C connectors on both ends

SMUGDESK

SMUGDESK 3.3FT USB 4 Thunderbolt 4 Cable 40Gbps 240W

SKU CH-B41J-JP9H0

A 3.3 ft Thunderbolt 4 cable delivering 40 Gbps data, 240 W charging and 8K@60 Hz video

Cable Length 3.3 Feet

  • 40 Gbps data transfer for fast file syncing
  • 240 W power delivery charges laptops rapidly
  • 8K 60 Hz or dual 4K 60 Hz video output
  • Works with Thunderbolt 3 and 4 plus USB-C 3.2, 3.1, 2.0
  • 3 ft length suits desk and dock setups

What this cable does

This 3.3 ft USB cable delivers 40 Gbps data transfer and 240 W charging over a single Thunderbolt 4 connection. It is built for professionals who move large files between high-speed storage, docks, or eGPUs while keeping a laptop powered. The cable also drives one 8K or 5K display at 60 Hz, or two 4K displays at 60 Hz, when the host supports DisplayPort Alternate Mode.

Who should use it and who should not

Creative pros and engineers with Thunderbolt 3, Thunderbolt 4, or USB4 hosts will get the full 40 Gbps throughput and 240 W power delivery. Users whose devices only support USB 3.2, 3.1, or 2.0 Type-C will see reduced speeds and lower charging limits, so buyers needing maximum bandwidth or the full 240 W charge on older ports should look at other solutions.

The spec that decides fit

The single figure that determines whether this cable matches your setup is the 40 Gbps data rate combined with 240 W power delivery; both must be supported by your host and peripheral to unlock the cable's full capability.

Highlights

  • 40 Gbps data transfer for fast file syncing
  • 240 W power delivery charges laptops rapidly
  • 8K 60 Hz or dual 4K 60 Hz video output
  • Works with Thunderbolt 3 and 4 plus USB-C 3.2, 3.1, 2.0
  • 3 ft length suits desk and dock setups

Specifications

No published specifications for this item yet.

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Questions about this item

Will this 3.3FT cable work with my older Thunderbolt 3 dock and still deliver 40Gbps data?

Yes, the cable is backward compatible with Thunderbolt 3 devices and supports 40Gbps data transfer, though the dock's own port limits the final speed.

How can I verify the cable is providing 240W charging to my laptop?

Check your laptop's power indicator or system settings; they will show the charging wattage when the cable negotiates 240W with a compatible charger.

Does the box include a power adapter or only the USB4 Thunderbolt 4 cable itself?

Only the 3.3FT USB4 Thunderbolt 4 cable is included; a 240W-capable power adapter must be purchased separately.

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