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Upgrade the memory of your 2020 iMac up to 128GB
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New vs Seasoned OWC Mercury Pro RE 200GB

2010-04-26 updated 2010-04-26 - Send Feedback
Related: Other World Computing, SSD, storage

See review and specifications.

The OWC Mercury Pro RE has 28% over-provisioning, which means that 28% of its memory is set aside for error correction, bad blocks, and performance enhancements. It is an enterprise-grade unit with a rated MTBF of 10 million hours, about 8 times longer than the best hard drives! Unlike some SSDs, it has no memory buffer, which is a very good thing should the power fail: no data loss.

As of April 2010, the OWC Mercury Extreme is the only SSD that I now feel confident recommending.

Performance brand-new and after seasoning

The OWC Mercury Pro RE graph below looks like only one write/read test was done because the results are all but identical when new and when seasoned.

In the graph below, reads are green and writes are red. This is a flawless performance! Click for a larger graph.

Average speed across the volume
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