SMUGDESK USB 4 Cable 3.3FT 40Gbps 240W 8K
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
- 1.5 Feet$13.99
- 3.3 Feet$16.99
- 5 Feet$15.99
- 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.
How it compares
Measured against everything we stock in USB Cords & Extension Cables, at today’s prices. Recalculated every night.
- Price $16.99
- Pricier than about 60% 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
SMUGDESK USB C to USB C Cable 5ft 40Gbps 240W 8K@60Hz Nylon Braided Black
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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