Older PC cases often have front USB ports that are physically labeled as USB 3.0 but actually deliver USB 2.0 speeds due to outdated internal connectors. This mismatch goes unnoticed with peripherals but becomes obvious during file transfers, where speeds drop from ~400 MB/s to 20-30 MB/s. Comparing front port speeds to rear motherboard ports is a quick diagnostic. Solutions range from checking your case specs to upgrading to a modern case with USB-C and USB 3.2 Gen 2 front I/O.

3m read timeFrom xda-developers.com
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The USB standard has evolvedNothing is obviously wrong, unless it doesn't work at allAddressing slow front I/O is fairly easy

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