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A black USB-C to USB-C cable coiled on a white surface

SMUGDESK

SMUGDESK USB4 Cable 40Gbps 240W 8K 6K 60Hz MacBook Pro Air 3.3FT

SKU CH-SM42-1VERF

A USB4 cable delivering 40 Gbps data, 240 W charging and 8K 60 Hz video for Thunderbolt devices

Cable Length 3.3 Feet

  • 40 Gbps data transfer moves large files in seconds
  • 240 W Power Delivery charges laptops at full speed
  • 8K 60 Hz video drives one 8K or dual 4K displays
  • Thunderbolt 3 and 4 compatible with backward USB 3.2 3.1 2.0 support
  • 3 ft length suits desk and travel setups

One cable for power data and video

This USB4 cable delivers up to 240W of power delivery and 40Gbps data transfer. It supports a single 8K display at 60Hz or dual 4K displays at 60Hz. The cable works with Thunderbolt 3 and 4 hosts and remains backward compatible with USB-C 3.2, 3.1, and 2.0 devices.

Sustained 240W charging and 40Gbps throughput

The cable maintains the full 240W PD 3.1 rating during continuous charging sessions with compatible GaN chargers. Data throughput holds at 40Gbps for large file transfers without thermal throttling. Video output remains stable at 8K 60Hz or dual 4K 60Hz during extended use.

Plug in and work with Alt Mode awareness

Installation is a simple USB-C to USB-C connection with no drivers required. The only common issue is attempting video output on a USB-C port that lacks DisplayPort Alternate Mode support. Cable length is 3.3FT, which suits typical desk setups without excess slack.

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

Does the 40 Gbps USB4 cable run hot when delivering 240 W all day?

The cable is rated for 240 W (48 V 5 A) PD 3.1 charging and 40 Gbps data transfer; normal operation stays within specification.

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

The USB-C port must provide DisplayPort Alternate Mode for video output.

Will the cable still charge and move files if I plug it into an older USB 3.2 or USB 2.0 port?

Yes — it is backward compatible with USB 3.2, 3.1 and 2.0 speeds and devices.

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