USB-IF Mandatory Naming Simplification (Effective April 20, 2026)
1. Latest Implementation Progress and Timeline
The USB Implementers Forum (USB-IF) released the final naming specification in December 2025, which came into full force globally on April 20, 2026, aiming to completely resolve the 10-year-long USB 3.x naming confusion issue.
April 20, 2026: All new products must use the new naming convention. Non-compliant products will not receive TID certification and are prohibited from using official USB trademarks
May 1, 2026: Synchronous enforcement in legislated regions including the EU, South Korea, and Saudi Arabia. Non-compliant products are prohibited from customs clearance
June 1, 2026: Global e-commerce platforms including Amazon, JD.com, Tmall, and Taobao fully delist products with legacy naming
December 31, 2026: All inventory of legacy-named products in offline channels must be completely cleared
2. Complete Naming Rule Comparison Table (Legacy → New)
All version numbers, Gen designations, and SuperSpeed terminology are fully banned. Only the intuitive "Speed + Power" labeling method is retained:
| Legacy Names (Fully Banned) | Corresponding Speed | New Names (Only Legal) |
|---|---|---|
| USB 2.0 / Hi-Speed USB | 480Mbps | USB-C (Only label power, not speed) |
| USB 3.0 / USB 3.1 Gen 1 / USB 3.2 Gen 1 | 5Gbps | USB-C 5Gbps |
| USB 3.1 Gen 2 / USB 3.2 Gen 2 | 10Gbps | USB-C 10Gbps |
| USB 3.2 Gen 1×2 | 10Gbps | USB-C 10Gbps |
| USB 3.2 Gen 2×2 / USB4 Gen 2×2 | 20Gbps | USB-C 20Gbps |
| USB4 Gen 3×2 / USB4 1.0 | 40Gbps | USB4 40Gbps |
| USB4 v2.0 / USB4 Gen 4×2 | 80Gbps | USB4 80Gbps |
3. Mandatory Product Labeling Requirements
All consumer-facing packaging, product bodies, manuals, and e-commerce detail pages must strictly comply with the following rules:
Cable Products (Mandatory Dual Labeling)
Must label both transmission speed and maximum charging power in the format "USB-C [Speed] / [Power]".
Correct Example: USB-C 10Gbps / 240W
Incorrect Example: USB 3.2 Gen 2 Cable, 240W Fast Charging Cable (no speed labeled)
Special Requirement: Cables ≥60W must label E-Marker chip; 240W cables must label "USB-IF Encrypted E-Marker"
Device Products (Hosts/Peripherals)
Each port must be individually labeled with its maximum supported speed and power. Vague expressions such as "Full-Featured Type-C" are prohibited.
Correct Example: Left USB-C 10Gbps / 100W; Right USB4 40Gbps / 240W
Incorrect Example: Full-Featured Type-C Port, USB 3.2 Port
Charger Products
Must label the supported PD version and maximum power, and also label the compatible UFCS version (if any).
Correct Example: USB-C 240W PD 3.2 Charger, Supports UFCS 2.0
Incorrect Example: Super Fast Charger, Laptop Charger
4. Global Enforcement and Penalties
USB-IF Official Penalties: Non-compliant products will not be issued TID certification; already certified products will have their certificates revoked. Violating brands will be fined 1%-4% of global revenue, and in severe cases, USB-IF membership will be revoked
E-Commerce Platform Penalties: Amazon has activated an AI automatic screening system, directly removing non-compliant products and deducting store credit points. JD.com/Tmall require merchants to complete the rectification of all product titles and detail pages by May 31
Customs Penalties: Customs in regions such as the EU, South Korea, and Saudi Arabia will conduct random inspections of imported products. Non-compliant products will be confiscated and fined
Consumer Complaints: Consumers can report non-compliant products to USB-IF or local market regulatory authorities, and will receive corresponding rewards upon verification
5. Thunderbolt Interface and Special Case Instructions
Thunderbolt 3/4/5 Retain Original Naming: But must also label the corresponding USB speed, e.g., "Thunderbolt 4 (USB4 40Gbps)"
Relationship Between Thunderbolt 5 and USB4 80Gbps: Thunderbolt 5 is based on USB4 80Gbps technology, supporting 80Gbps data transmission and 240W charging
Backward Compatibility: All new-named products are fully compatible with legacy standard devices, only the labeling method is different
Legacy Product Handling: Legacy-named products produced before April 20, 2026 can continue to be sold until December 31, 2026
6. Common Misconceptions Clarified
Misconception 1: Can vague labels like "USB 3.2" still be used?
No. Any naming containing version numbers or Gen designations is prohibited. The specific speed must be clearly labeled.
Misconception 2: Must USB4 products be labeled "USB4"?
Yes. Products with 40Gbps and 80Gbps speeds must be prefixed with "USB4", while products with speeds of 20Gbps and below are prefixed with "USB-C".
Misconception 3: Do power-only cables need to be labeled with speed?
No. Power-only cables (no data transmission function) only need to be labeled with power, e.g., "USB-C 240W Charging Cable".
Misconception 4: Are naming rules different in different regions?
Globally unified. USB-IF requires all member companies to implement the same naming rules worldwide.
7. Industry Impact and Future Trends
For Consumers: Completely solves the problem of "being scammed when buying cables", allowing instant understanding of product performance. It is expected to reduce after-sales disputes by 30% annually
For Manufacturers: Reduces marketing and communication costs, avoiding user complaints caused by naming confusion. However, in the short term, packaging, molds, and detail pages need to be redesigned, increasing costs by approximately 5%-10%
For the Industry: Promotes the unification and transparency of USB standards, laying the foundation for the future popularization of USB4 80Gbps and 120Gbps standards
Future Directions: USB-IF plans to release the USB4 v3.0 standard in 2027, supporting 120Gbps transmission speed, and will continue to simplify naming rules
