Micro USB Female Connector is commonly found in phone accessories and PCB sockets. 
You may also use a female micro USB connection cable open type in white to complete school and college projects. 
It can also be utilised for circuits whose power source is a 5V Micro USB adaptor. 
This connector doesn't support data transfer.
Anode
Positive terminal of Connector(the big leg)
Cathode
Negative terminal of Connector(the small leg)