what is the difference between white and black usb ports?
Black ports are the older USB 2.0 ports while the Blue ones are the newer USB 3.0 ports. USB 3.0 ports have a much higher transfer rate and is referred to as SuperSpeed USB (SS) that can transfer data at up to 5 Gbit/s (625 MB/s), which is about ten times as fast as the USB 2.0 standard.