Microsoft has updated the Windows Hardware Compatibility Program (WHCP) to establish minimum standards for USB-C ports on devices certified for Windows 11. The new requirements include:
- USB-C 3: Minimum data transfer speed of 5 Gbps.
- Power Delivery: At least 4.5W of accessory power.
- PC Charging: Capability for charging the device.
- Display Output: Support for at least one external display.
For USB 4, additional requirements include support for dual 4K 60Hz resolutions, PCIe, and Thunderbolt 3. All USB-C ports on certified devices must also support USB-IF certified silicon, USB Power Delivery, DisplayPort Alt-Mode, and utilize Microsoft’s built-in USB controller drivers. Manufacturers are expected to achieve WHCP compliance in the coming years.