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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.

Highlights

  • 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

Specifications

No published specifications for this item yet.

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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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