Thunderbolt 4 cable with USB-C connectors supporting 40Gbps data, mandatory DisplayPort Alt Mode for video, PCIe tunneling for external storage and eGPUs, and USB Power Delivery up to 100W. Fully USB4-compliant and backward compatible with Thunderbolt 3 and USB devices. Intel-certified for guaranteed performance. Active optical versions (e.g., Corning) extend to 100m for professional installations.

Connection Endpoints

End A	Thunderbolt 4 (USB-C) (male)
End B	Thunderbolt 4 (USB-C) (male)

Specifications

Protocol	Thunderbolt 4
Video Transport	DP Alt Mode (via USB-C)
Max Bandwidth	40 Gbps
Max Resolution	8K@30Hz
Max Refresh at 4K	60 Hz
USB Data Speed	40 Gbps
Power Delivery	100W
Consumer Tier	Thunderbolt 4

Supported Features

HDR10 DSC

Certifications

Intel Thunderbolt Certified

Length & Physical

Max Passive Length	2m
Max Active Length	100m

Compatibility Requirements

Requires Thunderbolt host Requires E-Marker chip

Backwards Compatibility

tb3 usb4-40 usb3-gen2 usb3-gen1 usb2 dp-alt pd-3

Thunderbolt 4 guarantees minimum PCIe bandwidth and dual 4K display support, unlike generic USB4 cables.

Notes & Compatibility

Passive cables support full 40Gbps up to 2m. Active optical cables (e.g., Corning) extend up to 100m for professional and long-run installations — note that AOC connector heads contain conversion chips that can overheat in poorly ventilated spaces. Works with USB4, USB 3.x, and USB 2.0 devices even without Thunderbolt. Always look for the Thunderbolt lightning bolt logo.