Overview
- Recent guides report that purple or turquoise connectors are commonly used to signal USB 3.1 and fast‑charge capability, with Huawei models often indicating SuperCharge support.
- Fast charging only works when the phone, cable and charger all support the same protocols, so using original or certified accessories is recommended.
- USB 3.1 increases data throughput to about 10 Gbps and, with USB‑C, can carry data, video and power over a single reversible connection.
- Manufacturers apply different color schemes, so not every brand uses purple for high‑power charging and buyers should confirm specifications rather than rely on color alone.
- Other colors are often used as shorthand—black for USB 2.0, blue for USB 3.0, red for high‑voltage charging even when a PC is off, yellow for always‑on power, and green for diagnostics—though practices vary.