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The USB 2.0 connector has 4 connector pins, the USB 3.0 version increases this to 9, allowing faster speeds but supporting full compatibility. It’s typically used for devices such as USB memory sticks, cable-to-socket connectors and data transfer cables. The Type-A connector is the standard rectangular one that everyone should recognize when they see a ‘USB stick’. Other advantages include the reduced number of connector standards and backwards compatibility. USB 2.0 was able to transmit data at a maximum speed of 480Mb/s while the USB 3.0 connectors can reach speeds of up to 5Gb/s. The primary advantage (and difference) of USB 3.0 over USB 2.0 is the increased speed. USB 3.0 simplifies this down to three connectors that are all backwards compatible with their previous counterparts. To a USB3.2 interface, the SATA II interface is slower and will determine the maximum speed possible.USB 2.0 (the kind you’re most likely using for devices older than a few years) specifies six standard connectors A, B, and then both a Mini and Micro version of each. For example, if you have a SATA II drive connected

*2 USB Speeds can varry with a variety of factors (cable length/other interfaces connected/hubs/.) so you might be better off selecting the slowest interface in your chain. There is some real confusion about this so make sure to look up how your specific application calculates size. The 1000 byte conversion is mainly used by hard drive manufacturers to calculate drive size. View the time given as a realistic minimum of the amount of time a file will take to transfer. ), more than one transfer at a time, and the interface not performing at the standard speed. (ex: requests for the information, syncs. The speeds are optimistic because the actual inferface will be slowed down by overhead This File Transfer Time Calculator is used to determine the approximate time that a file would take to transfer over a particular interface.