When it comes to USB-C cables, many people consider them interchangeable and not worthy of much thought. However, this couldn’t be further from the truth. The shape of the connector can look the same for different cables, but the performance standard is entirely different.
The issue lies in the USB ecosystem’s accumulation of standards over the years – USB 2.0, USB 3.0, USB 3.1, and more. Each standard uses the same connector shape but delivers completely different real-world performance. A generic USB-C cable often runs on USB 2.0 internals, which caps data speeds at 480 Mbps.
The latest development, USB4, aims to solve this problem by introducing a new standard that’s less about cables and more about superpowers. It supports faster data transfer rates of up to 80Gbps and protocol tunneling, allowing devices to split a single high-speed connection among multiple protocols simultaneously.
What sets USB4 apart is its ability to dynamically allocate bandwidth where it’s needed. This means one USB4 cable can power your laptop at up to 100W, drive a high-resolution display, and sustain fast transfers to an external drive all while negotiating the best possible connection.
USB4 has also introduced stricter labeling rules, including direct speed ratings and power indicators. These labels help consumers make informed decisions when buying cables. A small lightning bolt icon signals Thunderbolt compatibility, and E-Marker chips communicate capabilities to connected devices.
By understanding the difference between USB-C cables, you can stop feeling like a “cable expert” and start making informed choices. Shopping for cables becomes a calm and confident decision once you know what to look for on the label.
Source: https://www.makeuseof.com/stopped-buying-random-usbc-cables-after-learning-what-usb4-means