Blue or Teal: Which USB Port is Faster?

There are different colors of possible USB ports that you can find on computers. These can vary from white, black, red, teal, blue and even yellow. Each color has a different meaning, and while there is no industry-wide standard requiring manufacturers to follow these color conventions, most do. Fortunately, when manufacturers deviate from the usual color scheme, there may be other indicators around the port to help you determine its type, such as the letters SS, SS+, or labels like USB 3.2 next to it. Ultimately, the best way to determine speed is to check your computer’s data sheet, if available.

You may already know that the difference between blue and black USB ports is quite significant, with blue USB ports offering a huge increase in transfer speeds. The gap between the capabilities of the blue and teal USB ports is less impressive, but still significant, depending on the device you plan to connect. If the manufacturer follows the standard naming convention, teal USB ports are faster. These ports use USB 3.1 Gen 2, or SuperSpeed ​​USB+, to deliver up to 10Gbps transfer speed. The blue USB ports operate on USB 3.1 Gen 1 (originally called USB 3.0) or SuperSpeed, which only supports up to 5 Gbps of data transfer.

Understanding the differences between the types of USB ports on your computer is important to ensure you get the most out of your connected devices. If you connect a device to the wrong USB port, it may work slower. This is especially true for things like USB hubs and external hard drives. Both devices require a certain transfer speed to work at their full potential, so you should always check the connection recommended by the manufacturer. If the packaging says you should use a USB 3.1 or higher port, using a port lower than that could cause the device to work randomly, or even not work at all, as it will be limited to the lower transfer speeds and output power of the USB 2.0 port.

The good news is that these USB ports are backward compatible. If you end up with a device that doesn’t require USB 3.1 and it’s the only USB port you have, you can still plug it in. However, it will not take full advantage of the port’s capabilities. It gets a little trickier when you’re talking about USB-C ports, because you can use adapters to connect USB-A ports to USB-C, but you may lose some of the features that USB-C offers, such as power delivery and video streaming.