Ultimately, you can benefit from using any of these flash drive options, but if you want faster data transfer rates and the ability to send and receive data at the same time, along with better encoding capabilities, you’re better off using USB 3.0 or newer. USB 2.0 devices can also connect to USB 3.0 ports. Both the device and slot should be the same for the most optimal speed. It’s possible to connect USB 3.0 and 3.1 devices to 2.0 slots, but keep in mind that the speed will only reach that of the USB 2.0, which is 480 Mb/s as opposed to the much faster 5 Gb/s and 10 Gb/s. Connecting USB 3.0 and 3.1 to USB 2.0 Slots The wiring inside is also different between the USB generations, as the 2.0 generation of flash drives has only 4 copper wires, while the 3.0 models contain 9 copper wires. If you need to extend the length of these cables, you’ll need to use a hub or other connection. The cable length of USB 2.0 devices can be up to 16’5” at a maximum, but the length for 3.0 devices can only reach a maximum of 9’10”. USB versions up to 2.0 use Unicode as their encoding method, while versions 3.0 and higher have begun using 8b/10b encoding. USB 2.0 and 3.0 both operate at 5V, 1.8A, but USB 3.1 rose it to 20V, 5A, enabling users to power up larger devices. The reason for this is because the 2.0 uses the half duplex data transmission method whereas the 3.0 and newer use the full duplex data transmission method. This means that data can be sent and received simultaneously with the latest flash drives, while data can only be sent or received at a time with 2.0 and older. 3.0 and 3.1 have since improved upon this speed by bringing it up to 5 Gb per second and 10 Gb per second, respectively.Īlso regarding data transfer, the USB 2.0 and older models are only capable of processing data in a single direction at a time, but newer 3.0 and 3.1 models allow for data transfer in both directions. USB 1.0 only had a data transfer speed of 12 Mb per second, but was later sped up to 480 Mb per second with USB 2.0. Get a Quote! Data Transfer Rates and Directions
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