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Short black USB-C cable with straight connectors on both ends

SMUGDESK

SMUGDESK USB4 cable 1.5 ft 240W 40Gbps 8K Thunderbolt 4

SKU CH-4J28-ZMDX6

A 1.5 ft USB4 cable delivering 240 W charging and 40 Gbps data with 8K 60 Hz video support

Cable Length 5 Feet

  • Charges devices at up to 240W using 48V/5A power delivery
  • Transfers data at up to 40Gbps between compatible USB4 hosts
  • Drives an 8K display at 60Hz or dual 4K monitors
  • Works with Thunderbolt 4, Thunderbolt 3 and USB 3.2, 3.1, 3.0 devices
  • Compact 1.5 ft length suits desktop docks and portable SSDs

1.5 ft USB4 cable for power users

This 1.5 ft USB4 cable delivers up to 240 W of power and 40 Gbps data transfer for demanding devices such as external SSDs, eGPUs and docking stations. It supports 8K video at 60 Hz or dual 4K displays using two cables. The cable is compatible with Thunderbolt 4 and backwards compatible with Thunderbolt 3, USB 3.2, USB 3.1 and USB 3.0 devices.

Sustained 240 W charging and 40 Gbps throughput

Under continuous load the cable maintains the full 240 W (48 V / 5 A) rating, allowing a MacBook Pro to reach full charge in under an hour. Data transfer remains at 40 Gbps provided both host and peripheral support that speed, so large file moves to external storage stay fast during extended sessions. Video output holds 8K at 60 Hz without throttling when the connected hardware meets the same specification.

Plug-and-play USB-C to USB-C installation

The cable uses standard USB-C connectors on both ends, so installation is a simple plug into any compatible port. No drivers or firmware updates are required. The main limitation is that 40 Gbps transfer, 240 W charging and 8K video all depend on the host and device supporting those exact capabilities; if either side only supports a lower USB or Thunderbolt revision, performance will fall back to that lower level.

Highlights

  • Charges devices at up to 240W using 48V/5A power delivery
  • Transfers data at up to 40Gbps between compatible USB4 hosts
  • Drives an 8K display at 60Hz or dual 4K monitors
  • Works with Thunderbolt 4, Thunderbolt 3 and USB 3.2, 3.1, 3.0 devices
  • Compact 1.5 ft length suits desktop docks and portable SSDs

Specifications

No published specifications for this item yet.

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Questions about this item

Does the 1.5 ft USB4 cable get warm during continuous 240W charging?

The cable supports up to 240W (48V/5A) power delivery. It is built to handle maximum rated power, so sustained charging at that level stays within its thermal design.

What host port and device are needed to reach 40Gbps and 8K@60Hz?

Both the host and the peripheral must provide a Thunderbolt 4 or USB4 40Gbps port. A USB 3.2, 3.1 or 3.0 port will fall back to its own lower speed and video capability.

Will this cable work with my older Thunderbolt 3 dock and USB 3.1 SSD?

Yes. The cable is backwards compatible with Thunderbolt 3, USB 3.2, USB 3.1 and USB 3.0. It will operate at the highest speed each legacy device supports.

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