Blue USB ports support full duplex communication ... For example, if you're transferring files from an external hard drive to your computer, the drive can simultaneously receive new commands ...

Another annoying Blue Screen error is BUGCODE_USB_DRIVER. This error is occurred due to an issue with the usbhub.sys, winusb.sys or usbport.sys system driver file ...

There are a multitude of colors that your USB ports may come in, and they all have a specific meanings, with Yellow hinting at unique power delivery methods.