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A 6.6-foot USB4 cable with USB-C connectors at both ends

SMUGDESK

SMUGDESK 6.6-Foot USB4 Cable

SKU CH-MNRY-N7KYC

A 6.6-foot USB4 cable delivering 40 Gbps data, 100 W charging and 8K@60Hz video over Thunderbolt 3 and 4

Cable Length 6.6 Feet

  • Supports 8K@60Hz or dual 4K@60Hz displays via Thunderbolt
  • Delivers up to 100W charging power for compatible laptops
  • Transfers data at 40Gbps with Thunderbolt 4 devices
  • Backward compatible with USB-C 3.2, 3.1 and 2.0 speeds
  • 6-foot length gives flexible placement for docks and monitors

6.6-Foot USB4 Cable

This 6.6-foot USB4 cable connects Thunderbolt 3 and Thunderbolt 4 hosts with USB-C peripherals. It supports 40 Gbps data transfer, 100 W charging and video output up to 8K at 60 Hz or dual 4K at 60 Hz. The cable is backward compatible with USB 3.2, 3.1 and 2.0 devices.

Before ordering

Verify that your USB-C port supports DisplayPort Alternate Mode if you need video output. Confirm the host and peripheral both operate at Thunderbolt 3 or 4 speeds to reach the stated 40 Gbps rate. The cable will fall back to lower USB speeds when either end does not support Thunderbolt.

Build and connectors

The cable carries Thunderbolt 3 and 4 certification alongside USB4 compliance. Its USB-C connectors mate with Thunderbolt docks, high-speed storage and compatible laptops including MacBook Pro and iMac models. The 100 W power delivery rating exceeds earlier 60 W and 80 W designs for faster charging.

How it compares

Measured against everything we stock in USB Cords & Extension Cables, at today’s prices. Recalculated every night.

Price $17.99
Pricier than about 70% of the 15,227 comparable items (median $14.99).

Specifications

No published specifications for this item yet.

Other versions of this model

5 more in the same range

Questions about this item

Does the 6.6-foot USB4 cable include any adapters or do I need to buy them separately?

The cable ships as a single USB4 cable with USB-C connectors on both ends; no adapters are included in the box.

Should I choose this 6.6-foot length or the 1.6-foot version for a desktop monitor setup?

The 6.6-foot length gives enough reach for a monitor on a typical desk, while the 1.6-foot version suits dock-to-laptop connections where devices sit close together.

What does the 40gbps rating mean when I plug the cable into my laptop and external drive?

The 40gbps rating is the maximum theoretical bandwidth; real-world transfer speeds depend on the drive, controller and host port, but the cable itself will not limit Thunderbolt 3 or Thunderbolt 4 performance.

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