“Why are some gen 3.1 gen1 USB drives, listed has transferring at only 150 Mb/s and some at 480 Mb/s? I thought 3.1 gen 1 USB drives were supposed to have data transfer rates over 5 Gb/s?”
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Please allow us to inform you that USB 3.1 gen 1 (now USB 3.2 gen 1) is a specification in which supported products are rated at *up-to* 5Gbps (625MB) of transfer speed (read or write). That specification does not necessarily dictate that as a transfer speed minimum requirement. This means that some products, while compatibile with USB 3.2 gen 1 will not transfer data as fast as the maximum suported. There are different technologies incorporated into different USB flash drives (e.g. SSD technology in the SDCZ880) that allows for faster transfer speeds than the majority of lower-cost USB flash drives.
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