The different colors mean from the USB port:
- Black: Black USB ports are USB 2.0 standard ports. From this, you can USB safely all equipment (mouse, keyboard, old USB-Sticks). Note, however, that USB 3.0-compatible devices will not be able to take advantage of the full speed!
- Blue: a blue USB port is a USB 3.0 Port. The latest technology of the USB ports makes for a very fast transfer rate. So you can take advantage of the full transfer speed, you should be the devices that are USB 3.0 compatible (external hard drive, USB Stick), to this Port.
- Yellow: Those USB ports have a permanent power supply, even if your PC or Laptop is turned off. This Port can also as a charging station for a Smartphone to serve. The prerequisite for this is that you just plug in the mains plug from the Laptop into the power outlet. If you are using a power strip, you should make sure that the Power switch is set to "off".
- Red: In red terminals, it may be, in part, to a USB 2.0 port or a 3.0 port. It may not be quite the case that certain manufacturers stick to the "rule" of different colours for USB ports. So, for example, certain ASUS Boards with black and red Ports are equipped, although not all of the USB ports are only USB 2.0 compatible. After you read the software manual from the motherboard.
If all USB ports have the same color...
this is not to say that it is only USB 2.0 ports. Sometimes manufacturers skimp on the colors and mark the different USB Ports, with icons. Look, therefore, to the particular USB port, if you can find an icon. "Flashes" are usually for the permanent power supply (s. o. yellow connector). "3.0" or "SS (SuperSpeed)" stand for the fast USB 3.0 connection. Only if all of the connections are marked with the official USB Logo, there is only 2.0 ports.
Logo: USB port
The differences between USB 2.0 and USB 3.0, we will explain in this practical tip.
