Service mark symbol. The service mark symbol (â ), the letters SM in superscript style) is a symbol used in the United States to provide notice that the preceding mark is a service mark.
Size matters: The micro and mini USB connectors are of similar width. But the micro connector is much thinner (smaller vertical dimension). Some product designs were not able to accommodate the height of the mini receptacle and the new thinner receptacle will encourage and allow thinner products.
A Micro USB is also used to transfer different types of data straight to your desktop or laptop computer via the USB connection on each gadget. An HDMI cable is not used for data transfer at all. When considering which type of cable is best needed for your device, it's important to get the correct cable.