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Thunderbolt 4 cable, USB-C to USB-C, 3.3FT, braided finish

SMUGDESK

SMUGDESK Thunderbolt 4 Cable 3.3FT 40Gbps 100W

SKU CH-5Q3T-SW2DB

A 3.3 ft Thunderbolt cable delivers 40 Gbps data, 8K video at 60 Hz and 100 W charging

Cable Length 3.3 Feet

Style USB4

  • Charge up to 100W with a compatible charger
  • Transfer data at 40Gbps maximum speed
  • Drive a single 8K display at 60Hz
  • Connect two 4K screens at 60Hz each
  • Works with Thunderbolt and USB4 devices

Cable length and charge rating

This SMUGDESK Thunderbolt 4 cable measures 3.3FT and delivers up to 100W of power with a compatible charger. It suits anyone who needs a single cord to charge phones, accessories and gaming laptops while moving data. The 40Gbps bandwidth covers single 8K@60Hz or dual 4K@60Hz video output for external displays.

Sustained throughput and video stability

At the full 40Gbps Gen3 rate the cable can move roughly 14 hours of HD video or 25000 HD photos in about one minute. Bandwidth drops to 20Gbps on Gen2 ports, so sustained performance depends on the host controller. The connection remains stable for eGPU enclosures and dual 4K UHD workflows without thermal throttling.

Replaces slower USB-C cables

This cable upgrades any setup still running 10Gbps or 20Gbps USB-C leads that cannot drive 8K or supply 100W. The jump is worth it when you add an 8K monitor, a high-wattage laptop or a fast external SSD that demands the full 40Gbps pipe. It is not for users who only need basic charging or 1080p video on legacy ports.

How it compares

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

Price $15.99
Pricier than about 55% 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

Does the 40Gbps cable get warm when it runs at full 100W charging all day?

The cable is rated for 100W power delivery and 40Gbps bandwidth; normal operation at those limits should not produce noticeable heat.

What must my laptop port support to get 8K@60Hz video through this Thunderbolt cable?

Your laptop needs a USB4 or Thunderbolt port with DisplayPort Alternate Mode to drive an 8K@60Hz display.

Will this Thunderbolt cable work with my 2018 Mac Pro and a USB-C docking station?

Yes, it is backward compatible with Thunderbolt 3 and works with 2018, 2019, 2020 Mac Pro models and USB-C docks.

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