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Black USB-C cable with straight connectors, 3.3ft length

Kootion

Kootion USB4 Cable 40Gbps 3.3ft 8K 60Hz 4K 240Hz 240W Thunderbolt 4

SKU CH-0HG9-TMKCH

USB-IF certified cable delivers 40Gbps data, 8K 60Hz video and 240W charging over 3.3ft

  • TypeUSB Cables
  • USB-IF verified cable ensures reliable 40Gbps data transfer
  • Supports 8K at 60Hz and 4K at 240Hz via DP Alt Mode
  • Delivers up to 240W charging with USB PD 3.1 EPR
  • Backward compatible with USB 3.2, 3.1, 3.0 and 2.0 devices
  • Works with Thunderbolt 4 equipment for broad connectivity

USB4 cable for high-bandwidth workflows

This USB-IF certified USB4 cable delivers up to 40Gbps data transfer, 8K video at 60Hz, 4K at 240Hz and 240W power delivery. It suits creators and professionals connecting high-resolution displays, fast storage or docks to USB4 or Thunderbolt 4 hosts. The 3.3ft length keeps desktop setups tidy without excess slack.

40Gbps bandwidth decides compatibility

The single specification that determines fit is the 40Gbps USB4 data rate with backward compatibility to 20Gbps USB4, USB 3.2, 3.1, 3.0 and 2.0. If your host or device tops out at lower USB-C speeds the cable will still work but cannot exceed the port's native limit. Buyers needing Thunderbolt 3 specific features should verify host support separately.

Passive thermals with high power delivery

The cable operates without active cooling so it adds no noise to the workspace. It supports USB PD 3.1 Extended Power Range at 28V/140W, 36V/180W and 48V/240W, allowing connected laptops or monitors to draw full power during sustained loads. Connector housings remain warm under maximum charging but stay within normal operating temperatures for passive cables.

Highlights

  • USB-IF verified cable ensures reliable 40Gbps data transfer
  • Supports 8K at 60Hz and 4K at 240Hz via DP Alt Mode
  • Delivers up to 240W charging with USB PD 3.1 EPR
  • Backward compatible with USB 3.2, 3.1, 3.0 and 2.0 devices
  • Works with Thunderbolt 4 equipment for broad connectivity

Specifications

TypeUSB Cables

Questions about this item

What does the 40 Gbps rating actually deliver when the cable is plugged into a USB4 host and device?

The cable sustains up to 40 Gbps between two USB4 endpoints and falls back to 20 Gbps on 20 Gbps USB4 gear, matching the host and device capabilities.

How does USB-IF certification and Thunderbolt 4 compatibility limit real-world bandwidth and power?

USB-IF verification guarantees the 40 Gbps lane and DP Alt Mode for 8K at 60 Hz or 4K at 240 Hz, while Thunderbolt 4 compatibility ensures the same 40 Gbps ceiling and 240 W EPR charging at 28 V 140 W, 36 V 180 W or 48 V 240 W.

What physical clearance does the 3.3 ft cable need to reach between a laptop and a monitor or dock?

At 3.3 ft the cable spans a typical desk gap between a USB-C laptop and a USB-C monitor or docking station without strain.

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