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Internal SATA SSDs with higher official sequential write

Internal SATA SSDs whose official maker product page lists a higher official sequential write speed (MB/s). Picks are drawn from the official-spec ranking in this category; commissions never change the order.

Updated 2026-11-134 picksFull internal sata ssds ranking

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  1. 1

    Samsung 870 EVO 1TB

    Score is within our internal sata ssds ranking
    10.0/10

    Official product page lists a sequential write speed of 530 MB/s.

    What we like

    • Official maker page lists a sequential read speed of 560 MB/s.
    • Official maker page lists a sequential write speed of 530 MB/s.
    • Official maker page lists a capacity of 1 TB.

    Watch out for

    • Official endurance (TBW) is Not listed on the official product page we used.
    Check price at AmazonFull specs & sources
  2. 2

    WD Red SATA 2.5-inch 1TB

    Score is within our internal sata ssds ranking
    10.0/10

    Official product page lists a sequential write speed of 530 MB/s.

    What we like

    • Official maker page lists a sequential read speed of 560 MB/s.
    • Official maker page lists a sequential write speed of 530 MB/s.
    • Official maker page lists a capacity of 1 TB.
    • Official maker page lists endurance of 600 TB written.

    Watch out for

    • Official figures are for the configuration shown on the official product page, not a test we ran.
    Check price at AmazonFull specs & sources
  3. 3

    SanDisk SSD 520 4TB

    Score is within our internal sata ssds ranking
    9.9/10

    Official product page lists a sequential write speed of 525 MB/s.

    What we like

    • Official maker page lists a sequential read speed of 560 MB/s.
    • Official maker page lists a sequential write speed of 525 MB/s.
    • Official maker page lists a capacity of 4 TB.
    • Official maker page lists endurance of 1,000 TB written.

    Watch out for

    • Official figures are for the configuration shown on the official product page, not a test we ran.
    Check price at AmazonFull specs & sources
  4. 4

    WD Blue SA510 2.5-inch 1TB

    Score is within our internal sata ssds ranking
    9.9/10

    Official product page lists a sequential write speed of 520 MB/s.

    What we like

    • Official maker page lists a sequential read speed of 560 MB/s.
    • Official maker page lists a sequential write speed of 520 MB/s.
    • Official maker page lists a capacity of 1 TB.
    • Official maker page lists endurance of 400 TB written.

    Watch out for

    • Official figures are for the configuration shown on the official product page, not a test we ran.
    Check price at AmazonFull specs & sources

Keep comparing

Full rankingBest internal SATA SSDs, ranked on official maker specs Buying guideInternal SATA SSDs with higher official sequential read Head-to-headSamsung 870 EVO 1TB vs SanDisk SSD 520 4TBHead-to-headWD Red SATA 2.5-inch 1TB vs WD Blue SA510 2.5-inch 1TB TopicInternal SATA SSDs