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SMUGDESK

SMUGDESK USB 4.0 Gen 3 Cable 40Gbps 240W 5ft

SKU CH-N705-MX828

Delivers 40 Gbps data transfer, 240 W fast charging and 8K video over a 5 ft USB-C cable

Cable Length 5 Feet

  • Transfers 2.5 GB in one second at 40 Gbps speed
  • Charges MacBook Pro to 86 % in 35 minutes with 240 W power
  • Drives single 8K display at 60 Hz or dual 4K monitors at 60 Hz
  • Works with Thunderbolt 3 and 4 hosts plus USB-C 3.2, 3.1 and 2.0 devices
  • E-Marker chip regulates power and protects battery during charging

Cable purpose and audience

This USB 4.0 Gen 3 cable connects Thunderbolt 3 and Thunderbolt 4 hosts with USB-C peripherals, docking stations and high-speed storage. It serves professionals who need 40 Gbps data transfer, 240 W charging and 8K video from a single 5 ft link.

Interface limits and backward compatibility

The cable reaches 40 Gbps with Thunderbolt 3 and 4 devices and falls back to USB 3.2, 3.1 and 2.0 speeds for older ports. Video output requires the host USB-C port to support DisplayPort Alternate Mode; without Alt Mode no external display signal is transmitted.

Deciding specification

The integrated E-Marker chip negotiates up to 240 W (48 V 5 A) Power Delivery 3.1 and regulates voltage for each connected device. If the charger or device cannot accept 240 W, the cable simply delivers the lower negotiated power.

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

Should I pick the 5 ft length for my desk setup?

The 5 ft cable reaches across most desks while keeping the full 40 Gbps data rate and 240 W charging capability intact.

What does 40 Gbps mean when I plug this into my laptop?

You can move a 2.5 GB file in about one second and drive one 8K 60 Hz or dual 4K 60 Hz displays, provided the host supports DP Alt Mode.

Does the USB 4.0 Gen 3 interface limit charging or video performance?

The cable carries Thunderbolt 3 and 4, USB 4.0 Gen 3 and earlier USB‑C speeds, delivering up to 240 W (48 V 5 A) and full 8K 60 Hz video without bottleneck.

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