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đ USB-C Revolution: The New Windows PCs
The End of USBâC Chaos
Starting in 2025, new Windows PCs will have to meet strict standards for USBâC ports. This historic initiative from the WHCP program promises to simplify the user experience, eliminate confusion among manufacturers, and align the Windows ecosystem with Appleâs reliability.
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đ The problem: technical anarchy
USBâC was presented as a universal solution â "one port to rule them all". In reality, each PC manufacturer implemented features at will, according to their cost constraints and business priorities.
Result: two identical USBâC ports on the same laptop could have radically different capabilities, with no clear visual indication for the user.
â The answer: WHCP certification
Microsoft has updated its WHCP (Windows Hardware Compatibility Program) certification, applicable from 2025 to all new Windows PCs.
From now on, every USBâC port on a certified PC must meet a guaranteed minimal functional core: data + charging + video output on every port, without exception.
Before / After WHCP Standardization
USBâC · Windows 11 24H2 · WHCP · Interactive diagram
Comparison of USBâC ports · Before / After WHCP standardization
đ±ïž Hover over a port to see its capabilities
đŽ Before WHCP
Inconsistent ports
USBâC port 1
Data only
Data 5 Gbps
No charging
No display
USBâC port 1 â Data onlyFile transfer possible (5 Gbps), but you cannot charge your PC or connect a monitor through this port.
USBâC port 2
Data + Charge
Data 5 Gbps
Charging OK
No display
USBâC port 2 â Data + ChargeYou can charge and transfer files, but you cannot connect a screen or projector to this port.
USBâC port 3
Data + Display
Data 5 Gbps
No charging
1 display possible
USBâC port 3 â Data + DisplayConnecting a display works here, but you cannot charge your PC through this port. The "port roulette" forces the user to test each port.
đą After WHCP
Windows 11 24H2 certified
USBâC port 1
Universal guaranteed core
Data â„ 5 Gbps
USBâPD charging
1 guaranteed display
USBâC port 1 â WHCP coreGuaranteed by certification: data (â„ 5 Gbps), USB Power Delivery charging, and DisplayPort Alt Mode video output on every USBâC port of the PC.
USB4 40Gbps
USBâC port 2
Premium USB4 profile
40 Gbps + TB3
Charge â„ 15W
Multiâscreen 4K
USB4 40Gbps port â Premium profileCompatible with Thunderbolt 3, PCIe Tunneling, universal docks, eGPU, external NVMe SSDs, and multiple 4K@60Hz displays simultaneously.
USB4 80Gbps
USBâC port 3
Advanced USB4 Gen 4 profile
80 Gbps symmetric
Charge â„ 15W
8K / VR displays
USB4 80Gbps port â Advanced profile80 Gbps symmetric or 120/40 Gbps asymmetric mode. Ideal for 8K screens, nextâgen VR, and AI workstations. USBâIF certification mandatory.
Before WHCP: "port roulette" â each USBâC port may have different capabilities (data, charging, display), with no consistency among them.
After WHCP: on a certified Windows 11 24H2 PC, all USBâC ports handle data + charging + at least one display, with some USB4 40/80Gbps ports offering multiâscreen and high bandwidth.
The new WHCP requirements
đĄ Data transfer
- Minimum speed: 5 Gbps (USB 3.0)
- Supported protocols: USB 3.2 and USB4
- Backward compatibility guaranteed with existing devices
đĄ Major consequence: the end of "port roulette". Every USBâC port must now handle data + charging + video, without exception.
đ USB Power Delivery charging
- USB Power Delivery mandatory on every port
- â„ 4.5W minimum on laptops
- â„ 7.5W minimum on tablets
â ïž Note: The maximum wattage (from 60W to 240W) remains at the manufacturer's discretion and varies by model.
đ„ïž Video output â the real revolution
- DisplayPort Alt Mode required on every USBâC port
- VESA certification mandatory to guarantee interoperability
- Multiâdisplay support on premium USB4 ports
đŻ Why it matters: Users can finally plug any monitor, projector, or USBâC dock into any port of their Windows PC â without having to test each port one by one.
USB4 and Thunderbolt: a standardized future
đ USB4 40Gbps
- Native Thunderbolt 3 compatibility required
- PCIe Tunneling mandatory for highâperformance peripherals
- Power â„ 15W (7.5W for tablets)
đ Use cases: universal docks, eGPU, highâspeed external NVMe SSDs
đ Interoperability revolution: For the first time, docks designed for MacBook Pro (USB4/Thunderbolt) will work natively on WHCPâcertified Windows PCs.
đ USB4 80Gbps (2025â2026)
- 80 Gbps symmetric bidirectional
- 120/40 Gbps asymmetric mode to prioritize display
- USBâIF certification mandatory for every product
đ„ïž Use cases: 8K displays, nextâgen VR, AI workstations â the USBâC port becomes a universal, very highâperformance connection.
Implementation and timeline
January 2025
Mandatory for all new PCs certified Windows 11 24H2 (e.g., Surface Pro 12" and Surface Laptop 13")
2025â2026
Gradual transition for manufacturers with technical support from Microsoft
2026â2027
Generalization to 90% of new Windows devices according to Microsoft estimates
đ§ Key certification mechanisms
- USB-IF Certified Silicon : Chips must be certified by the USB Implementers Forum
- Microsoft drivers : Mandatory use of system drivers for updates via Windows Update
- HLK tests : Automated test suite via the Hardware Lab Kit
- Penalties : No Windows certification without full compliance
Impact on users and manufacturers
| Aspect | Before WHCP | With WHCP |
|---|---|---|
| User experience | Ports with random capabilities, uncertain compatibility | All ports handle data + charging + video |
| Compatibility | Docks and displays often incompatible | Plugâandâplay with USB4/Thunderbolt devices |
| Information | Obscure technical labels (USB 3.2 Gen 2x2) | Simplified naming (e.g., "USB4 40Gbps") |
| Costs | Savings on entryâlevel models | Estimated extra cost $30â50 per device |
Competitive advantage : This standardization finally puts Windows on an equal footing with Apple, where USBâC/Thunderbolt harmonization has been the norm for several years.
Technical challenges and conclusion
𧩠Persistent challenges
- Cable anarchy : Microsoft does not regulate USBâC cables, whose capabilities still vary
- Variable power delivery : Maximum wattage (60W to 240W) still depends on the manufacturer
- Backward compatibility : Old nonâcompliant peripherals will remain problematic
- Gradual transition : NonâUSBâC ports (USBâA, HDMI) will remain for several years
đŻ Conclusion and pro tip
With this historic regulation, Microsoft does not completely eliminate USBâC anarchy but channels it into a coherent Windows experience. By 2026, new PCs will offer reliability close to Apple's "it just works".
Pro tip : To buy with peace of mind from 2025, favor PCs with the "Certified Windows 11 24H2 + USB4" logo and USB-IF Certified 40Gbps/240W cables.
Technical Illustrations
đĄ Click on a card to discover its detailed specifications on the back
USB TypeâA
Standard rectangular connector
Specifications
Speed up to 10 Gbps
Nonâreversible
Used for keyboards, mice, USB drives
Nonâreversible
Used for keyboards, mice, USB drives
USB TypeâB
Mainly for printers
Specifications
Square robust connector
Speed up to 5 Gbps
Rare on modern laptops
Speed up to 5 Gbps
Rare on modern laptops
USB TypeâC
Reversible universal connector
Specifications
Speed up to 80 Gbps
Power up to 240W
Combines data + video + charging
Power up to 240W
Combines data + video + charging
USB Mini
Predecessor of MicroâUSB
Specifications
Used on old mobile devices
Speed up to 480 Mbps
Obsolete, replaced by USBâC
Speed up to 480 Mbps
Obsolete, replaced by USBâC
USB Micro
Standard for older smartphones
Specifications
Thinner than MiniâUSB
Speed up to 5 Gbps
Progressively replaced by USBâC
Speed up to 5 Gbps
Progressively replaced by USBâC
Thunderbolt 4
The pinnacle of connectivity
Specifications
40 Gbps bidirectional
Up to two 4K displays or one 8K
Compatible with USB4, PCIe, DP 2.0
Identifiable by the ⥠logo
Up to two 4K displays or one 8K
Compatible with USB4, PCIe, DP 2.0
Identifiable by the ⥠logo
đ USB Technical Glossary
USBâC (TypeâC)
Reversible and compact USB connector that supports data transfer, video, and power delivery.
WHCP (Windows Hardware Compatibility Program)
Microsoft certification program ensuring hardware compatibility with Windows systems.
USB4
USB standard offering speeds up to 80 Gbps and integrating Thunderbolt 3/4 technology.
Thunderbolt
Hardware interface developed by Intel enabling highâspeed data transfers and connection of external peripherals.
USB Power Delivery (USBâPD)
Fast charging protocol over USB, delivering up to 240W of power.
DisplayPort Alt Mode
Alternate mode allowing transmission of DisplayPort video signals over a USBâC connector.
PCIe Tunneling
Technology enabling PCI Express data to be carried over other interfaces like USB4 or Thunderbolt.
eGPU (External GPU)
External graphics card connected via USB4/Thunderbolt to boost a laptop's graphics performance.
USBâC Dock
Docking station that expands a computer's capabilities through a single USBâC port (USB, HDMI, Ethernet, etc.).
USBâIF (USB Implementers Forum)
International organization that develops, certifies, and maintains USB standards.
VESA (Video Electronics Standards Association)
Organization defining video standards such as DisplayPort and display mounting specifications.
HLK (Hardware Lab Kit)
Microsoft tool suite for testing and validating hardware compatibility with Windows.
Verified Sources
đ Microsoft Docs â USB4 Design Details & WHCP Requirements
Official Microsoft technical documentation detailing USB4 design requirements and WHCP certification criteria for Windows PC manufacturers.
learn.microsoft.com
đ Microsoft Tech Community â Ending USB-C Port Confusion
Official blog post from the Microsoft USB team explaining the strategy and motivations behind the WHCP update to standardize USBâC ports.
techcommunity.microsoft.com
đ USB-IF â Official USB4 Specifications
Official USB Implementers Forum page presenting the USB4 specification, performance profiles, and certification requirements for USB4 Gen 2 and Gen 3 equipment.
usb.org
đ Altium â USB4 Design for Ultra-Fast Serial Data Transfer
Inâdepth technical guide on PCB design for USB4, covering signal integrity, differential routing, and electromagnetic compliance.
resources.altium.com
Recommended Reads from SafeITExperts
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How Microsoft resolved boot conflicts between Windows and Linux distributions â a major breakthrough for multiâOS users.
đȘ Windows 11: why these strict requirements? Complete 2025 guide
Full analysis of Windows 11 hardware requirements â TPM 2.0, Secure Boot, compatible CPUs â and their impact on users and businesses.
đź The global gaming ecosystem 2025: a multifaceted revolution
Overview of revolutions transforming PC gaming in 2025: DirectX 13, Xbox Game Pass, AI integration, and new immersive experiences.
âïž Linux, Windows 11 or macOS 2025: the strategic choice for the future
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