USB port colors

Nowadays you can see USB A ports in many colors like black, blue, teal blue, yellow, red and other colors. For the most part, the color of the USB port indicates the version of the port, but there are few exceptions. This article will tell you what those colors usually mean. Please bear in mind while the uses of these colors is common, manufacturers don’t always follow them. While it’s often easy to figure out the USB ports version just from its color, it’s more of a convention to color the ports that way, and is not a requirement of the standard.

White USB Port

The white color in USB port indicates it is USB 1.X, which is some of the very early standards. It supports only very slow transfer speed of 1.5 Mbps, or 12 Mbps at full bandwidth. You will typically see this only on very old hardware.
In some cases you can see standard USB 2.0 port that is available in white.

Black USB Port

Black USB port indicates that the port is older standard USB 2.0 that supports transfer speed up to 480 Mbits. Even though it is old and slow, is still useful for many things. This type of port can be used to connect devices that don’t require high transfer speeds, like keyboards or mice.

Blue USB Port

Blue is the conventional color for USB 3.0 port. Even the cables for that standard are blue. These ports support speed up to 5 Gbit/s if the connected device and cable support this speed to benefit from it.

Teal Blue USB Port

USB 3.1 ports come in Teal Blue. These ports support transfer speed up to 10 Gbit/s. Some people may see this port as green.

Red USB Port

Red color is normally used for USB 3.1 Gen 2 and USB 3.2 ports that can support transfer speed up to 20 Gbit/s. Some manufacturers use Red Color USB port color to indicate that you can get power from the port even your laptop/desktop is power-off or sleeping or hibernating. The red color USB port will carry a current of 1.8 amps and a voltage of 5 volts, companies make those ports because some external devices may require more power than a conventional USB 2.0 port can provide.

Yellow USB Port

The yellow USB port is typically the same as Red USB Port.
In some cases the yellow in USB port doesn’t indicate the port type (can be USB 2.0 or USB 3.0). Rather than that, it indicates that the port is always-on, even if the computer is in sleep mode or turned off.

Orange USB Port

Orange USB Port is usually also the same as Red USB Port. They come normally with USB 3.0 specifications and they are also “Sleep and Charge” ports.

Sleep-and-charge ports come in many colors

Sleep and Charge Port is one of the special USB ports which is used to charge external devices and those ports are normally in red, orange, and yellow colors.

Blue Color, Black Color USB ports don’t provide/deliver power when your laptop/desktop is power-off or sleep or hibernate. But these Red Color USB port gets power even your laptop/desktop is power-off or sleeping or hibernating.

USB sleep-and-charge ports are often yellow, orange, or red. These ports can be used to charge phones or electronic devices even when the computer is switched off.



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