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A Thunderbolt 4 cable with USB-C connectors on both ends, 3.3 ft long

SMUGDESK

SMUGDESK Thunderbolt 4 Cable 40Gbps 3.3 ft

SKU CH-EVJ6-M8ZRR

USB-IF certified Thunderbolt 4 cable delivers 40Gbps data transfer, 8K video at 60Hz, and 100W charging in a 3.3 ft length

Cable Length 3.3 Feet

  • Charges laptops and phones at up to 100W with a compatible charger
  • Transfers 14 hours of HD video or 25,000 photos in one minute at 40Gbps
  • Drives a single 8K display at 60Hz or dual 4K displays at 60Hz
  • USB-IF certified for Thunderbolt 4 and USB4 compatibility
  • 3 ft length gives flexible desk placement without excess cable

What the cable does

This Thunderbolt 4 cable carries 40 Gbps of data and up to 100 W of power over a 3.3 ft length. It supports single 8K at 60 Hz or dual 4K at 60 Hz video output. USB-IF certification confirms compliance with the Thunderbolt 4 and USB4 specifications.

What the certification and power delivery change

USB-IF certification means the cable meets the official electrical and mechanical requirements for Thunderbolt 4 and USB4. The 100 W PD 3.1 rating lets it charge phones, tablets and gaming laptops from a compatible charger. Bandwidth drops to 20 Gbps when connected to a Gen 2 port.

What to verify before ordering

Confirm that both host and peripheral have Thunderbolt 4 or USB4 ports able to run at 40 Gbps. Check that your charger and device support 100 W USB Power Delivery if you need maximum charging speed. The 3.3 ft length suits desktop setups; longer runs need an active cable.

How it compares

Measured against everything we stock in USB Cords & Extension Cables, at today’s prices. Recalculated every night.

Price $16.99
Pricier than about 60% of the 15,227 comparable items (median $14.99).

Specifications

No published specifications for this item yet.

Other versions of this model

5 more in the same range

Questions about this item

Will the USB-C connectors or the 3.3 ft cable jacket need replacement after repeated plugging and unplugging?

The cable is USB-IF certified and built for daily use; normal handling will not require connector or jacket replacement.

What bandwidth ceiling appears first when the cable runs at full 40 Gbps for long transfers?

Sustained throughput is limited by the host port — Gen 3 ports deliver 40 Gbps, while Gen 2 ports cap at 20 Gbps.

Does the cable get warm or draw extra power when it carries 100 W charging and 8K video all day?

It supports up to 100 W (20 V / 5 A) Power Delivery 3.1 and 40 Gbps bandwidth without active cooling; any warmth stays within normal USB-C cable limits.

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