The Micro-B USB connector is designed to be used for connecting devices such as cell phones and digital cameras. The new Micro-B connectors feature a tandem design where the new Super Speed connector is located side by side with the 2.0 connector. USB 3.0 Micro-B cable end connectors are not compatible with USB 2.0 ports. A USB 2.0 Micro-B cable end connector can be plugged into a USB 3.0 Micro-B port but not vice versa.