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Grey USB-C to USB-C cable, 3.3 ft, male-to-male connectors

LUOM

LUOM Thunderbolt 4 / USB 4 Cable 3.3 Ft 40Gbps 240W USB C to USB C Grey

SKU CH-NCPE-4AE9S

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

  • Connector TypeUSB C to USB C
  • ColorGrey
  • Thunderbolt 3Yes
  • Terminal GenderMale to Male
  • Apple CompatibleUSB-C port

Cable Length 3.3 Feet

  • Charges up to 240 W with a compatible charger
  • Transfers data at up to 40 Gbps between capable devices
  • Drives a single 8K display at 60 Hz or dual 4K at 60 Hz
  • Works with Thunderbolt 3 and Thunderbolt 4 hosts
  • 3 ft length suits desk and travel setups

Thunderbolt 4 cable for high-power

This Thunderbolt 4 cable delivers up to 40Gbps bandwidth and supports 240W charging at 48V/5A. It handles single 8K at 60Hz or dual 4K at 60Hz video output. The 3.3 Ft length suits desk or dock connections.

Check that both host and device accept 240W USB

Verify your charger and laptop negotiate 48V/5A for full 240W charging. Confirm the ports are Thunderbolt 3, Thunderbolt 4 or USB4 Gen3 to reach 40Gbps data rates. Note that Gen2 ports limit bandwidth to 20Gbps.

Sustains 40Gbps throughput for long transfers

Real-world read speeds reach 2.8GB/s and write speeds 2.1GB/s when both ends support Gen3. The cable maintains full bandwidth during extended file moves or external GPU sessions. Performance drops to 20Gbps if either port is Gen2 only.

Highlights

  • Charges up to 240 W with a compatible charger
  • Transfers data at up to 40 Gbps between capable devices
  • Drives a single 8K display at 60 Hz or dual 4K at 60 Hz
  • Works with Thunderbolt 3 and Thunderbolt 4 hosts
  • 3 ft length suits desk and travel setups

Specifications

Connector TypeUSB C to USB C
ColorGrey
Thunderbolt 3Yes
Terminal GenderMale to Male
Apple CompatibleUSB-C port

Other versions of this model

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Questions about this item

Does the 3.3 ft cable include a power adapter or do I need to supply my own 240 W charger?

Only the USB C to USB C cable is in the box; a 48 V / 5 A charger capable of 240 W must be purchased separately.

Should I choose this 40 Gbps model or a slower 20 Gbps cable for an 8K 60 Hz monitor?

Select the 40 Gbps version — it delivers the full bandwidth needed for single 8K 60 Hz or dual 4K 60 Hz output, while a 20 Gbps link is limited to lower resolutions.

Will I actually see 40 Gbps throughput when I copy files between my laptop and an external SSD?

Real-world reads reach 2.8 GB/s and writes 2.1 GB/s on a Gen 3 port; on a Gen 2 port the ceiling drops to 20 Gbps, so the host controller determines the final speed.

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