Western Digital Black AN1500 4 TB vs Western Digital SN520 256 GB

A side-by-side spec comparison of the Western Digital Black AN1500 4 TB and the Western Digital SN520 256 GB. We line up every specification, highlight the winner of each, and tally an overall verdict so you can decide which storage is right for your build.

Side-by-side specification comparison of Western Digital Black AN1500 4 TB and Western Digital SN520 256 GB.
Specification	Western Digital Black AN1500 4 TB $393.54 Buy on Amazon	No image Western Digital SN520 256 GB No price data Winner
Type	SSD	SSD
Cache	0	0
Capacity	4000 GB	256 GB
Interface	PCIe x8	NVMe Gen3
Read Speed	550 MB/s	3500 MB/s
Form Factor	PCIe	M.2 2280
Write Speed	520 MB/s	3000 MB/s

Western Digital Black AN1500 4 TB

spec won

Western Digital SN520 256 GB

specs won

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