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Only buyers upgrading from a spinning hard drive in a machine confirmed to have no M.2 slot should consider the Kingston A400 — sequential reads of 500 MB/s are a major step up from HDD but trail every modern alternative. At $189 for 960GB with no DRAM cache and no stated TBW, it scores 43/100. The Samsung 870 EVO 1TB offers DRAM cache, 600 TBW, and a five-year warranty for a comparable price; any NVMe SSD at 1TB costs $55–65 and reads 13× faster. For $189 in 2026, there are objectively better options in every category — buy this only when no alternative interface is physically available.
Best SSDs under $100 in 2026. Compare SATA and NVMe drives by speed and value. Samsung 870 QVO, Crucial P3, WD Green reviewed.
Read guide →How to Replace a Laptop Hard Drive: Step-by-Step for BeginnersReplace laptop hard drive with SSD. Step-by-step instructions, tools needed, backup & migration guide. Works on most laptops.
Read guide →How to Format a New SSD: Step-by-Step GuideFormat new SSD for Windows or Mac. Initialize disk, create partition, choose file system (NTFS, APFS). Setup in 5 minutes.
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