USB port colors explained: What each color means for speed and charging

Ever since USB-A ports became the standard for connecting peripherals, they've come in a variety of colors — and each one tells you something important about the port's capabilities.

If you see a blue USB port, you're looking at a USB 3.0 port. These are your go-to for fast data transfers.

Yellow or orange ports are typically 'always-on' ports that provide power even when the computer is shut down.

Red USB ports are usually high-power ports designed for fast charging — they can deliver more current than standard ports.

Green ports are often associated with Qualcomm's Quick Charge technology, which can charge compatible devices significantly faster than standard USB ports.