Question: What is USB 3.0 exactly? How to verify if my system do have USB 3.0 connections?
Answer: First, USB 3.0 is a standard for interfacing computers and electronic devices. Among other improvements, USB 3.0 adds the new transfer rate 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. Manufacturers are recommended to distinguish USB 3.0 connectors from their USB 2.0 counterparts by blue color-coding of the Standard-A receptacles and plugs, and by the initials SS.
Second, it is recommended to visit your computer manufacturer website to see if USB 3.0 connectivity is available. Most of USB 3.0 connections are blue and have a logo near the connector.