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A four-foot USB-C cable with straight connectors and a black braided finish

SMUGDESK

SMUGDESK Thunderbolt 4 Cable 4Ft 40Gbps 240W 8K

SKU CH-H32K-516HV

A Thunderbolt 4 cable delivering 40Gbps data transfer, 240W charging and 8K video output for compatible devices

Cable Length 4 Feet

  • 40 Gbps transfer speed moves 2.5 GB files in one second
  • 240 W charging powers laptops and phones with a single cable
  • 8K at 60 Hz or dual 4K at 60 Hz from one connection
  • Works with Thunderbolt 3 and 4 plus USB 3.2, 3.1 and 2.0 devices
  • Four-foot length suits desk and travel setups

Thunderbolt 4 Cable 40Gbps 240W 8K

This Thunderbolt 4 cable delivers 40Gbps data transfer, 240W charging, and 8K video output. It is built for professionals who connect high-resolution monitors, fast storage, and power-hungry laptops through a single USB-C link. The cable suits creators and engineers who need maximum throughput and power delivery in one certified connection. Backward compatibility covers earlier USB-C standards without extra adapters.

Plug-and-play installation

Connection is straightforward: plug the USB-C ends into host and peripheral. The only common issue is video failure when the host port lacks DisplayPort Alternate Mode, so verify that the source device supports video over USB-C before assuming a cable fault. No drivers or firmware updates are required for data or charging functions. The 4 ft length fits typical desk and dock setups without strain.

240W power delivery decides suitability

The single specification that determines fit is the 240W (48V/5A) power rating. If your laptop, dock, or charger requires more than 100W, this cable is necessary; if your gear never exceeds 100W, a lower-rated cable will work but this one adds future headroom. Data speed reaches 40Gbps with real-world reads up to 2.8GB/s and writes up to 2.1GB/s. Video supports one 8K@60Hz or dual 4K@60Hz displays.

Highlights

  • 40 Gbps transfer speed moves 2.5 GB files in one second
  • 240 W charging powers laptops and phones with a single cable
  • 8K at 60 Hz or dual 4K at 60 Hz from one connection
  • Works with Thunderbolt 3 and 4 plus USB 3.2, 3.1 and 2.0 devices
  • Four-foot length suits desk and travel setups

Specifications

No published specifications for this item yet.

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Questions about this item

How can I confirm the cable is delivering 40Gbps data transfer after connecting my devices?

Use a speed test tool on the connected storage or dock and verify read speeds approach 2.8GB/s and write speeds approach 2.1GB/s, which indicates the 40Gbps link is active.

What comes in the box and do I need to buy a charger separately to reach 240W charging?

The package contains the 4 ft USB-C to USB-C cable only; a compatible 240W (48V/5A) USB-C power adapter must be purchased separately to achieve the maximum charging rate.

Which version of this cable should I choose if I need to drive a single 8K display at 60Hz?

This single 4 ft model supports one 8K@60Hz or 5K@60Hz display, so it meets that requirement without needing a different variant.

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