In our throughput test, reads peaked at the 4MB block size at 267.49MB/s before falling back to end the test at 252.04MB/s. Writes peaked at 275.23MB/s as the drive passes through the 128KB block size, before dropping back to finish the test at 249.25MB/s. Both of these peak figures confirm the official Seagate transfer rate for the drive of 261MB/s.
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