SMUGDESK
SMUGDESK USB4 cable 3.3 ft 240W 40Gbps Thunderbolt 4
A USB4 cable delivering 240W charging, 40Gbps data and 8K 60Hz video over 3.3 ft
- Charges laptops rapidly with up to 240W power delivery
- Transfers large files at 40Gbps maximum data rate
- Drives an 8K display at 60Hz for sharp visuals
- Works with Thunderbolt 4, 3 and USB 3.2, 3.1, 3.0 devices
- 3 ft length suits close-range desktop connections
USB4 cable for Thunderbolt 4 devices
This 3.3 ft USB4 cable delivers up to 240W of power and 40Gbps data transfer for Thunderbolt 4 compatible hardware. It supports 8K video at 60Hz or dual 4K displays using two cables. The connector fits USB-C ports on laptops, tablets, external SSDs, eGPU enclosures and docking stations.
Practical limits of the USB4 interface
Maximum performance requires both host and peripheral to support 40Gbps and 240W (48V/5A). Video output depends on the host GPU and display capabilities; the cable itself does not upscale resolution. Backwards compatibility covers Thunderbolt 3 and USB 3.2, 3.1 and 3.0, but speeds and power drop to the lowest common standard.
Installation notes and common issues
Plug the USB-C connectors into both devices; no drivers are required. The most frequent issue is using a port that lacks Thunderbolt 4 or full USB4 support, which caps data at lower rates and prevents 240W charging. Ensure the power source and sink both negotiate 48V/5A for maximum wattage.
Highlights
- Charges laptops rapidly with up to 240W power delivery
- Transfers large files at 40Gbps maximum data rate
- Drives an 8K display at 60Hz for sharp visuals
- Works with Thunderbolt 4, 3 and USB 3.2, 3.1, 3.0 devices
- 3 ft length suits close-range desktop connections
Specifications
No published specifications for this item yet.
Other versions of this model
5 more in the same range
Same family, different memory, cooler or clock — compare before you commit.
SMUGDESK 40Gbps USB 4.0 Gen 3 Cable 3.3 ft Braided USB4.0 C to C Thunderbolt 3/4 Compatible 8K 60Hz PD 240W 5A
Questions about this item
Should I choose the 1.5 ft or 3.3 ft length for my desk setup?
The 1.5 ft cable suits tight spaces like docking stations; the 3.3 ft cable gives more reach for monitors or eGPUs across a desk.
What does the 40 Gbps rating deliver when I plug in an external SSD?
You can move large video files at up to 40 Gbps provided the drive and host both support that speed.
How does the Thunderbolt 4 compatibility limit charging and video output?
It caps power at 240 W (48 V / 5 A) and video at 8K 60 Hz or dual 4K displays.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
Tripp Lite U324-003-BK USB 3.0 cable USB-A to USB-A 3 ft
- USB
- Black







