How can I tell if I have mini port or micro port on my Android tablet? I was given an Android tablet. I want to hook up a keyboard and a mouse. By looking at it, how can I tell if it has a micro port or a mini port?
This one is mini:



and this one is micro:



There's also another new micro version for USB 3.0, which looks like this.  The port is backwards compatible with the previous micro USB cables (you just use half the port and it'll just step down to USB 2.0 speeds).  I'm not sure if any Android devices use the new port as yet.