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Black USB-C to USB-C cable, 4 ft length, Thunderbolt 4 certified

SMUGDESK

SMUGDESK USB4 Thunderbolt 4 Cable 4 ft 240W 40Gbps 8K@60Hz

SKU CH-QNHZ-M4QB8

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

Cable Length 4 Feet

  • Charges devices up to 240W with compatible power supply
  • Delivers 8K video at 60Hz or dual 4K displays
  • Transfers data at up to 40Gbps for large files
  • Works with Thunderbolt 4, Thunderbolt 3, USB4 and USB-C gear
  • Certified Thunderbolt 4 cable ensures reliable performance at full speed

Thunderbolt 4 Certified 4 ft Cable

The SMUGDESK USB4 cable is Thunderbolt 4 certified and carries up to 240W of power alongside 40Gbps data bandwidth. It supports single 8K@60Hz or dual 4K@60Hz video output. The 4 ft length suits desktop and portable setups alike.

Suits high-power and high-bandwidth setups

Creators driving 8K displays, users charging 240W laptops and anyone connecting eGPUs or fast Thunderbolt enclosures will benefit from the full 40Gbps bandwidth. Users with only USB 3.2 Gen 2 ports will see speeds limited to 20Gbps and should check their host capability first.

Deciding specification: 40Gbps Thunderbolt 4

The cable delivers 40Gbps only when both host and device support Thunderbolt 4 or USB4 Gen 3. With Gen 2 ports the link falls back to 20Gbps, so verify your port generation before purchase.

How it compares

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

Price $18.99
Pricier than about 73% 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

Do I need a charger that can output 48V at 5A to get the 240W charging this cable supports?

Yes, the cable delivers up to 240W only when paired with a charger that supplies 48V at 5A and a device that accepts that power level.

Will this cable run at 40Gbps if I connect it to a Thunderbolt 3 port on my current laptop?

Thunderbolt 3 ports are limited to 20Gbps, so the cable will operate at up to 20Gbps with that hardware.

How can I confirm the link is running at the full 40Gbps after I plug everything in?

Check the OS connection details or run a bandwidth test; a Gen3 link will show 40Gbps while a Gen2 link will show 20Gbps.

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