
USB4 frente a USB3.2 Gen2x2: velocidad, ancho de banda y tecnología del futuro
IntroductionAs connectivity demands surge, understanding the evolution from USB3.2 Gen2×2 to USB4 becomes critical for tech enthusiasts and professionals. This analysis dissects speed, bandwidth, and protocol advancements while highlighting why upgrading to cables—engineered for peak performance—is essential in 2025. 1. Speed & Bandwidth: A Quantum Leap USB4 delivers 40 Gbps bidirectional bandwidth—doubling USB3.2 Gen2×2’s 20 Gbps. This leap enables: 4K/120Hz video transmission without compression 10x faster file transfers (e.g., 100GB files in 25 seconds vs. 50+ seconds) Simultaneous data, video, and power delivery via a single port. Key Insight: USB4’s dual-lane architecture optimizes throughput, whereas USB3.2 Gen2×2 relies on split lanes for parallel data paths. 2. Protocol