![]() USB 3.0 protocol can run on all the physical USB ports mentioned above, so does USB 2.0 protocol. However, your desktop or laptop computers are mainly using USB Type-A and USB Type-C interfaces, while external hard drives are mainly using USB Type-A (this port is more commonly used in 3.5-inch drives), USB Type-C, Micro USB, and Mini USB interfaces. USB interface has many physical forms like USB Type-A, USB-Type-B, USB-Type-C, Micro USB, Mini USB, etc. Compared with USB 2.0 whose transfer rate is 60 MB/s (480 Mbps), the transfer rate of USB 3.0 can be up to 500 MB/s (5 Gbps). USB 3.0 is a USB data transfer protocol initiated by companies such as Intel, which is compatible with USB 1.1 and USB 2.0. I have discussed Thunderbolt external hard drive before, so in this post, I mainly focus on eSATA vs USB 3.0. In general, most external and portable hard drives are equipped with USB ports, and some external hard drives come with other ports like eSATA, Thunderbolt, etc.
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