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SMUGDESK

SMUGDESK USB4 Cable 1.5FT 40Gbps 240W E-Marker

SKU CH-SGD1-KMNFS

A 1.5 ft USB4 cable delivering 40 Gbps data and 240 W power with an E-Marker chip

Cable Length 1.5 Feet

  • 40 Gbps bi-directional data transfer with USB4 Gen 3x2
  • 240 W Power Delivery 3.1 charging for high-power laptops
  • Thunderbolt 3 and 4 compatible for docks and displays
  • E-Marker chip ensures safe 48 V / 5 A power negotiation
  • 5 ft braided cable for durable, clutter-free connections

USB4 cable with 40 Gbps bandwidth

This USB4 Gen 3x2 cable carries up to 40 Gbps of bi-directional data between compatible hosts and peripherals. It supports 8K video output and works with Thunderbolt 3 and 4 devices. The 1.5 ft length keeps signal paths short for reliable high-speed transfers. An integrated E-Marker chip ensures correct power and data negotiation.

Sustained 240 W power delivery

The cable handles Extended Power Range up to 240 W at 48 V under the PD 3.1 specification. It remains backward compatible with 180 W, 140 W, 100 W and 60 W profiles, so a single cable can charge laptops, phones and hubs at their maximum supported rates. PD 3.0 PPS, QC 4.0 and other fast-charge protocols are also supported for broad device coverage.

Simple plug-and-play installation

Reversible USB-C connectors remove orientation guesswork, and the braided jacket resists tangling during frequent connects. No drivers or firmware updates are required; the E-Marker communicates capabilities automatically. The short 1.5 ft reach suits desktop docks and portable SSDs but will not span longer distances between desk and display.

Highlights

  • 40 Gbps bi-directional data transfer with USB4 Gen 3x2
  • 240 W Power Delivery 3.1 charging for high-power laptops
  • Thunderbolt 3 and 4 compatible for docks and displays
  • E-Marker chip ensures safe 48 V / 5 A power negotiation
  • 5 ft braided cable for durable, clutter-free connections

Specifications

No published specifications for this item yet.

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Questions about this item

Does the 1.5FT cable get warm when delivering 240W continuously?

The cable is rated for 240W at 48V with an E-Marker chip, so it handles full-load charging without overheating.

What charger and device are needed to reach 240W over this cable?

A PD 3.1 charger capable of 240W EPR and a device that accepts 240W input are required; lower-power gear will negotiate down to 180W, 140W, 100W or 60W.

Will the 40Gbps link work with my Thunderbolt 3 dock?

Yes, the cable is Thunderbolt 3/4 compatible and runs at 40Gbps with any Thunderbolt 3 or USB4 Gen 3x2 host and peripheral.

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