Not all USB-C ports are created equal. While one port on a laptop may seamlessly support display output, another, despite its similar appearance, may leave users frustrated and unable to connect their devices. Recognizing this inconsistency, Microsoft has taken proactive steps to address the issue. The tech giant recently unveiled updates to the Windows Hardware Compatibility Program (WHCP), establishing minimum standards for USB-C ports that must be met for devices to receive certification for Windows 11.
New Minimum Requirements for USB-C Ports
According to a document titled “Ending USB-C® Port Confusion: Windows 11 WHCP Delivers Consistent Performance Across Every Port,” Microsoft has outlined specific requirements that PC builders must adhere to in order to achieve WHCP compliance. The new standards dictate that every USB-C port on a certified device must support:
- USB-C 3: A 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 those opting for USB 4, the requirements become even more stringent, necessitating support for dual 4K 60Hz resolutions, PCIe, and Thunderbolt 3.
Microsoft’s goal is to create an environment where USB data transfer, charging, and display functionalities operate seamlessly across all USB-C ports on WHCP-certified devices. The company emphasizes that consumers can expect:
Reliable Connections: With a mandate for USB-IF certified silicon, users can trust that their connections will be robust and dependable, having undergone rigorous testing for compatibility.
Efficient Charging: Every USB-C port must support USB Power Delivery, ensuring consistent and efficient charging.
DisplayPort Alt-Mode: All USB-C ports are required to support monitor connections, with VESA certification guaranteeing reliable performance.
Microsoft Driver Stack Requirement: PCs will utilize Microsoft’s built-in USB controller drivers, ensuring that security and feature updates are delivered seamlessly via Windows Update.
While it may take some time for these new standards to be fully implemented, Microsoft assures that manufacturers are on track to achieve WHCP compliance across the majority of systems in the upcoming years. This initiative is a welcome development for consumers weary of navigating the complexities of port compatibility.
