Nobody is talking about what speed this thing transfers files at. My 2.0 transfers at about 7 mbs per second and I have a 3.0 that transfers at about 22 mbs, what will this particular one do? Assuming of course you are plugging it in to 3.0 drive. null

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RayLee · Accepted Answer

It is backward compatible

Razor68 · Answer

HI Rick, Your mileage may vary, but Crystal DiskMark 8.0.4 x64 had this to say about a drive I purchased only hours ago with it attached to a low-end desktop's USB 3 Type A port: ------------------------------------------------------------------------------ CrystalDiskMark 8.0.4 x64 (C) 2007-2021 hiyohiyo Crystal Dew World: https://crystalmark.info/ ------------------------------------------------------------------------------ * MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s] * KB = 1000 bytes, KiB = 1024 bytes [Read] SEQ 1MiB (Q= 8, T= 1): 124.367 MB/s [ 118.6 IOPS] < 66966.05 us> SEQ 1MiB (Q= 1, T= 1): 121.001 MB/s [ 115.4 IOPS] < 8649.10 us> RND 4KiB (Q= 32, T= 1): 7.916 MB/s [ 1932.6 IOPS] < 16519.54 us> RND 4KiB (Q= 1, T= 1): 5.502 MB/s [ 1343.3 IOPS] < 743.74 us> [Write] SEQ 1MiB (Q= 8, T= 1): 74.461 MB/s [ 71.0 IOPS] <107195.03 us> SEQ 1MiB (Q= 1, T= 1): 58.726 MB/s [ 56.0 IOPS] < 17829.76 us> RND 4KiB (Q= 32, T= 1): 0.644 MB/s [ 157.2 IOPS] <157044.81 us> RND 4KiB (Q= 1, T= 1): 0.485 MB/s [ 118.4 IOPS] < 7214.38 us> Profile: Default Test: 1 GiB (x5) [E: 0% (0/231GiB)] Mode: [Admin] Time: Measure 5 sec / Interval 5 sec Date: 2021/08/11 12:05:03 OS: Windows 10 Enterprise [10.0 Build 17763] (x64) Comment: PNY Attache 4 256 GB USB 3.0 Type A Flash Drive Note that USB Flash Drives should ABSOLUTELY NEVER be used for tasks requiring random read/write access to the drive, as they're extremely slow for that purpose and it'll wear them out very quickly. The numbers you care about are the sequential performance numbers, and the most important is the "Q= 1, T = 1" number, which was 121 MB/s read and 58.7 MB/s write. Hope this helps!

Answered by Razor68 4 years ago

“Nobody is talking about what speed this thing transfers files at. My 2.0 transfers at about 7 mbs per second and I have a 3.0 that transfers at about 22 mbs, what will this particular one do? Assuming of course you are plugging it in to 3.0 drive.”

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