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Black USB-C to USB-C cable, five feet long, matte finish

SMUGDESK

SMUGDESK USB4 cable Thunderbolt 4 240W 40Gbps 8K@60Hz 5ft

SKU CH-VD0S-Z400Z

A 5 ft USB-C cable delivering 240 W charging, 40 Gbps data and 8K at 60 Hz video over Thunderbolt

Cable Length 5 Feet

  • Charges up to 240W with compatible charger
  • Delivers 8K video at 60Hz over USB-C
  • Transfers data at up to 40Gbps bandwidth
  • Moves 25,000 photos in roughly one minute
  • Supports Thunderbolt 4 and Thunderbolt 3 devices

High-power USB-C cable for Thunderbolt 4 workflows

This 5 ft USB4 cable delivers up to 240 W of power at 48 V and 5 A, making it suitable for charging phones, accessories and gaming laptops from a single compatible charger. It supports 8K video at 60 Hz on a single display or dual 4K at 60 Hz across two monitors, and provides 40 Gbps bandwidth for external GPU and high-resolution display scenarios. The cable is backward compatible with Thunderbolt 3 and Thunderbolt 4 devices.

Thermals, noise and power draw

As a passive cable it generates no noise and draws no power of its own; thermal output is limited to resistive losses during 240 W charging or 40 Gbps data transfer. The 40 Gbps Gen 3 mode moves up to 2.8 GB/s read and 2.1 GB/s write, while Gen 2 ports operate at up to 20 Gbps. Real-world throughput depends on the host port and connected device capabilities.

Build integration and system fit

The USB-C to USB-C connectors plug directly into any USB-C port, freeing you from proprietary dock cables and allowing a single cable to handle charging, video and data simultaneously. Dual-monitor setups require two cables, and 8K or 40 Gbps performance needs host ports that support the corresponding USB4 or Thunderbolt specifications. It does not add latency or require drivers, so it works instantly with compatible laptops, docks, monitors and eGPU enclosures.

Highlights

  • Charges up to 240W with compatible charger
  • Delivers 8K video at 60Hz over USB-C
  • Transfers data at up to 40Gbps bandwidth
  • Moves 25,000 photos in roughly one minute
  • Supports Thunderbolt 4 and Thunderbolt 3 devices

Specifications

No published specifications for this item yet.

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Questions about this item

How do I install the USB-C to USB-C cable and what step is often missed?

Connect both USB-C ends firmly; the step people miss is confirming the host port supports Thunderbolt 4 or USB4 Gen3 to reach 40Gbps, otherwise bandwidth drops to 20Gbps.

What maintenance or replacement will the 5ft cable need over time?

Inspect connectors for debris and check the braided jacket for kinks; replace the cable if the 48V/5A charging path shows discolouration or intermittent 240W delivery.

What limit appears first during sustained 40Gbps transfers?

Thermal throttling on the host controller typically caps real-world throughput at 2.8GB/s read and 2.1GB/s write before the cable’s 40Gbps rating becomes the bottleneck.

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