How to Buy a 4TB M.2 SSD: Gen 4 vs Gen 5, Pricing, and Compatibility

I have completed the market analysis and buying guide for 4TB M.2 SSDs.

The current market is defined by a significant "AI Premium," with top-tier 4TB prices nearly tripling since 2024 to range between $640 and $1,100+ Tomshardware Accio. The report details how the shift toward AI-focused high-bandwidth memory has created supply shortages for consumer storage Oscooshop Oscooshop.

Key findings include the limited real-world utility of PCIe 5.0 (14,800 MB/s) for gaming compared to PCIe 4.0 (7,500 MB/s), especially given the extreme thermal challenges and high costs of Gen 5 drives Reddit Google. I have also identified several competitive wholesale manufacturers offering 4TB units at scale.

Please refer to the detailed report below for strategic buying advice, brand comparisons, and technical specifications.