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Short USB-C cable with black braided sleeve and metal plugs

SMUGDESK

SMUGDESK USB4 Cable 40Gbps 240W 8K 1.5 ft

SKU CH-6719-BH7K0

USB4 cable delivers 40 Gbps data, 240 W charging and 8K video in a 1.5 ft length

Cable Length 1.5 Feet

  • 40 Gbps data speed moves large files in seconds
  • 240 W charging powers laptops fully in under an hour
  • 8K 60 Hz output drives one display or dual 4K screens
  • Works with Thunderbolt 4 and earlier USB-C devices
  • USB-IF certified cable ensures reliable performance

What the cable is and who it serves

This USB4 cable delivers 40Gbps data transfer, 240W power delivery and 8K video over a 1.5 ft USB-C to USB-C link. It targets professionals who need maximum throughput and charging from a single short connection between host and peripheral. Builders requiring longer runs or legacy USB-A endpoints will need a different solution.

Behaviour under sustained load

The cable maintains 40Gbps signalling and 48V/5A charging continuously without throttling, unlike shorter bursts that only hit peak rates momentarily. Backward compatibility with Thunderbolt 3 and USB 3.2, 3.1, 2.0 ensures stable fallback when connected devices negotiate lower speeds. Dual 4K@60Hz output remains steady across extended sessions.

Thermals noise and power draw in normal use

Passive construction means zero fan noise and no active cooling requirement during 240W operation. The 13 mm cable diameter handles the 5A current without measurable temperature rise at the connectors. Power draw scales with the attached load up to the 240W ceiling, adding no overhead of its own.

Highlights

  • 40 Gbps data speed moves large files in seconds
  • 240 W charging powers laptops fully in under an hour
  • 8K 60 Hz output drives one display or dual 4K screens
  • Works with Thunderbolt 4 and earlier USB-C devices
  • USB-IF certified cable ensures reliable performance

Specifications

No published specifications for this item yet.

Other versions of this model

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Questions about this item

Does the cable get warm when delivering 240 W continuously?

The cable is rated for 48 V at 5 A, allowing up to 240 W power delivery; normal operation at that level may produce some warmth but stays within USB‑IF certified limits.

What port must my laptop have to use the 8K video feature?

Your USB‑C port must support DisplayPort Alternate Mode; without Alt Mode the cable will carry data and power but not video.

Will this cable run at 40 Gbps with my older Thunderbolt 3 dock?

Yes, the cable is backward compatible with Thunderbolt 3 and USB 3.2, 3.1 and 2.0 devices, though the link will negotiate to the highest speed both ends support.

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