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Short black USB-C cable with straight connectors, 1.5 ft length

SMUGDESK

SMUGDESK USB4 40Gbps 240W USB-C Cable 1.5ft 8K Video Thunderbolt 3/4

SKU CH-CG80-3N8S4

A 1.5 ft USB-C cable delivering 240 W charging, 40 Gbps data and 8K video for Thunderbolt 3/4 devices

Cable Length 1.5 Feet

  • Charges up to 240W with PD 3.1 EPR
  • Transfers data at 40Gbps USB4 speed
  • Drives single 8K@60Hz or dual 4K@60Hz displays
  • Works with Thunderbolt 3 and 4 hosts
  • Soft, durable 1.5ft cable for daily use

High-Power USB4 Cable for Thunderbolt 3/4

The SMUGDESK USB4 cable carries 240W Power Delivery 3.1 Extended Power Range at 48V/5A. It supports 40Gbps data transfer and 8K@60Hz or dual 4K@60Hz video output over a 1.5ft length. Designed for users who need maximum charging and bandwidth for Thunderbolt 3 or 4 laptops, docks and eGPU enclosures.

Passive Thermal Design and Power Efficiency

The soft, flexible jacket allows tight routing without stress on ports while maintaining full 240W throughput. No active cooling is required; the cable runs at ambient temperature during sustained 48V/5A charging sessions. Power loss stays within USB4 specification limits so connected devices negotiate their maximum supported rate without throttling.

E-Marker Chip Enables Full Feature Negotiation

An integrated E-Marker communicates cable capabilities to host and peripheral, unlocking 40Gbps Gen3 speeds, 240W EPR charging and 8K video alt-mode automatically. Without this chip, many hosts fall back to 20Gbps Gen2 or 100W limits. The cable replaces legacy USB 2.0, 3.0, 3.1 and 3.2 leads for any USB-C device.

Highlights

  • Charges up to 240W with PD 3.1 EPR
  • Transfers data at 40Gbps USB4 speed
  • Drives single 8K@60Hz or dual 4K@60Hz displays
  • Works with Thunderbolt 3 and 4 hosts
  • Soft, durable 1.5ft cable for daily use

Specifications

No published specifications for this item yet.

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Questions about this item

How do I connect the USB4 cable for 8K video and 40 Gbps data?

Plug the USB-C connectors into the host and display or dock; ensure both ports are USB4 Gen3 or Thunderbolt 3/4 to reach 8K@60 Hz and 40 Gbps bandwidth.

When will the 240 W PD 3.1 EPR cable need replacement?

Replace if the connectors loosen, the jacket frays, or charging drops below the negotiated 48 V/5 A profile; the cable has no user-serviceable parts.

What limits sustained 40 Gbps transfers on this 1.5 ft cable?

Thermal throttling in the host or peripheral controller typically caps throughput before the cable’s 40 Gbps rating becomes the bottleneck.

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