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SMUGDESK

SMUGDESK USB 4 Cable 3.3FT 40Gbps 240W 8K

SKU CH-N3X4-VFB2E

A 3.3 ft USB4 cable delivering 40 Gbps data, 240 W charging and 8K 60 Hz video over USB‑C

Cable Length 3.3 Feet

  • Transfers data at 40 Gbps with USB4 Gen3x2
  • Delivers up to 240 W charging via PD 3.1 Extended Power Range
  • Drives a single 8K display at 60 Hz or dual 4K at 60 Hz
  • Works with Thunderbolt 3 and 4 devices and earlier USB-C standards
  • 3 ft reversible USB-C to USB-C cable for flexible desk setups

What the cable is and who it serves

This USB 4 cable carries the latest USB 4.0 Gen 3x2 standard with USB C male connectors on both ends. It delivers up to 40Gbps bi-directional data transfer, 240W power delivery under PD 3.1, and video output up to 8K at 60Hz or dual 4K at 60Hz. The 3.3FT length suits desk setups linking laptops, docks, monitors or high-speed storage.

What it replaces and when the step up matters

The cable consolidates older USB 2.0, 3.0, 3.1 and 3.2 leads as well as earlier Thunderbolt 3 and 4 cables into a single link. The jump is worthwhile when you need the full 40Gbps bandwidth, 240W charging headroom or 8K video from one port. Devices limited to 100W or 60W charging will still work but will not draw the extra power.

Practical limits of the USB 4 interface

Video output requires the host USB C port to support DisplayPort Alternate Mode; without it the cable carries data and power only. Dual 4K@60Hz operation needs two separate cables. Maximum voltage is 48V and the 240W rating depends on both charger and device implementing PD 3.1 Extended Power Range. Bandwidth drops to the lowest common standard when connected to legacy USB 3.2, 3.1 or 2.0 ports.

Highlights

  • Transfers data at 40 Gbps with USB4 Gen3x2
  • Delivers up to 240 W charging via PD 3.1 Extended Power Range
  • Drives a single 8K display at 60 Hz or dual 4K at 60 Hz
  • Works with Thunderbolt 3 and 4 devices and earlier USB-C standards
  • 3 ft reversible USB-C to USB-C cable for flexible desk setups

Specifications

No published specifications for this item yet.

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Questions about this item

What USB-C port spacing does the 3.3 ft cable need to reach between devices?

The cable measures 3.3 ft end-to-end with USB-C male plugs on both sides, so the two ports must be within that distance when the cable lies flat.

How do I enable 8K video output on this USB4 cable?

Connect both ends to USB-C ports that support DisplayPort Alternate Mode; the cable itself carries the 8K@60Hz signal but the host and display must each advertise Alt Mode.

When should I replace this cable if charging performance drops?

If the cable no longer delivers the rated 240 W at 48 V or falls back to 100 W or 60 W negotiation, the internal PD 3.1 circuitry or wiring has likely degraded and the cable should be swapped.

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