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ssd write speed

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    Why a slow write speed from a Crucial P2 upgrade?

    I installed a Crucial P2 with a Sintech NGFF M.2 nVME SSD Adapter Card on a Macbook Pro (Retina, Late 2013) with Big Sur 11.4. Read speeds from BlackMagic are a barely higher than the original Apple SSD (~ 500MB/s) but Write speeds die quickly. The first numbers during the Write test are around...