
2026 USB4.0 Cable Guide: Certification, Power & Length
By 2026, USB4.0 cables have become the universal backbone for high-speed data, charging, and video—but not all cables are created equal. With counterfeit “certified” lines flooding the market and new 240W EPR and 80Gbps options, picking the right cable means focusing on four non-negotiable metrics: USB-IF certification, 240W power delivery, 40Gbps (or 80Gbps) speeds, and cable length limits. 1. USB-IF Certification: The Only Way to Guarantee Performance In 2026, counterfeit USB4 cables now mimic official labeling better than ever. USB-IF certification is your only protection against underperforming lines that risk damaging devices. Here’s what to look for: Official Labeling: Certified cables feature a laser-etched USB-IF










