SSDs fail mainly because NAND flash cells wear out after a finite number of write cycles.

Is it true that SSDs fail mainly because NAND flash cells wear out after a finite number of write cycles?

Partly. Several sources confirm NAND flash cells endure only a finite number of program/erase cycles and that this wear limits SSD lifespan, but none states that wear-out is the main cause of SSD failure. Other sources point to additional failure mechanisms such as data-retention charge loss, solder-joint fatigue, and radiation-induced degradation, so the evidence covers the claim only in part and on both sides.

Verdict: CONTESTED PARTIAL · 4 sources for, 2 against · Last checked 3 Oct 2026

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

MacKenty, B., Stephenson, L., & Abela, J. (2025). Oxford Resources for IB DP Computer Science: Course eBook. books.google.com. http://books.google.com/books?id=XxtXEQAAQBAJ&dq=SSDs+fail+mainly+because+NAND+flash+cells+wear+out+after+a+finite+number+of+write+cycles.&hl=&as_pt=BOOKS&source=gbs_api

Automatic Data Repair Overwrite Pulse for 3D-TLC NAND Flash Memories with 38x Data-Retention Lifetime Extension. (n.d.). cir.nii.ac.jp. https://doi.org/10.1109/irps.2019.8720420

Error source and latency-aware read performance optimization scheme for aged SSDs. (n.d.). cir.nii.ac.jp. https://doi.org/10.1587/elex.18.20210103

Write amplification. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Write_amplification

Reorder the Write Sequence by Virtual Write Buffer to Extend SSD’s Lifespan. (2011). inria.hal.science. https://doi.org/10.1007/978-3-642-24403-2_21

Prognostic Health Monitoring Method for Fatigue Failure of Solder Joints on Printed Circuit Boards Based on a Canary Circuit. (n.d.). cir.nii.ac.jp. https://doi.org/10.1115/imece2013-65317