Even the fastest SD cards are still quite slow.
Previously, high-end SD cards utilized PCIe Gen3 connectivity and were limited to speeds of 985 MBps or less.
Even a modest file transfer will feel noticeably quicker over a PCIe Gen4 connection.
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But with increased speed comes increased heat.
This keeps the card safe but can ruin an active recording or file transfer.
Interestingly, SD 9.1 also boosts the reliability of multi-stream recording.
Check out theSD 9.1 white paperif you need additional details on this particular subject.
The number listed in each speed class denotes transfer speed in megabytes per second.
The new SD 9.1 spec doesn’t have a launch date.
For additional information, check out theSD 9.1 white paperor read theSD Association’s blog.
Source:SD AssociationviaPC World
