Slow write speed with 2TB SN750 WD_BLACK

Hi,

I just purchased a 2TB SN750 WD_BLACK nmve ssd that I mounted on a USB 4.0 NVMe M.2 SSD enclosure from ACASIS. Read speed ok, but I am getting slow write speeds (1100MB/sec). I have a macbook pro with M1 pro... Is there a fix to this?


MacBook Pro (2020 and later)

Posted on Jun 5, 2022 4:35 PM

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4 replies

Jun 6, 2022 6:20 AM in response to lbarcelo34

How is it connected? USB-A (commonly just USB) or USB-C?


"A" will generally be slower than "C." But what is the rated MAX speed of the drive? My external SSDs get pretty near their max at 1050 mbps using a USB-C cable, USB-A is in the 560 mbps range..


You will very likely never get the absolutely MAX speed advertised; you can come close though.

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Slow write speed with 2TB SN750 WD_BLACK

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