Samsung 4TB SSD Price Drops 27 Percent
The high-speed drive now costs 20 cents per gigabyte amid broader industry volatility from the AI boom.
Updated on Oct. 21, 2026 in Semiconductors
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The 4TB Samsung 990 Pro SSD has seen its retail price drop by 27 percent. This adjustment brings the high-performance storage drive to a cost of 20 cents per gigabyte.
Why it matters
As the AI boom continues to strain global memory and storage supply chains, this price decrease marks a rare point of stabilization for high-capacity, high-speed consumer drives. It provides developers and power users with more cost-effective access to premium NAND flash hardware.
The 4TB drive achieves a maximum sequential read speed of 7,450 MB/s and a write speed of 6,900 MB/s. It maintains a power efficiency of 421.1 MB/s per watt and an endurance rating of 2,400 TBW.
The players
Samsung
A leader in semiconductor manufacturing and memory technology, specializing in V-NAND architecture for consumer and enterprise storage.
Amazon
A global cloud computing and e-commerce infrastructure provider currently acting as the primary retail channel for this price adjustment.
The details
The drive uses 236-layer TLC (triple-level cell) V-NAND memory, which stores three bits per cell for increased density. To sustain write performance, it employs 10GB of pSLC (pseudo-single-level cell) cache, a buffer that mimics faster single-bit storage. Once the cache is exhausted, data spills into the TLC memory at a rate of 1.6 GB/s, while the drive maintains a sustained sequential write speed of 6.2 GB/s for 75 seconds.
Timeline
October 21, 2026: The updated retail price is currently available.
The Tech Race
This pricing shift highlights the volatility in the high-density storage market as competitors balance record demand for AI-specific memory against consumer product needs. It updates the landscape for premium M.2 drives by lowering the barrier to entry for users requiring sustained write performance.
Users building high-performance workstations or expanding storage for large datasets can now access this 4TB drive at a lower cost per gigabyte. The drive requires an M.2 2280-compatible slot to utilize its full sequential read and write throughput.
The takeaway
This adjustment provides a momentary reprieve for hardware builders in a supply-constrained environment. Watch for further shifts in NAND flash pricing as manufacturers adjust production capacity to meet the competing demands of data center expansion and consumer demand.
Further reading
For more on the current state of flash storage and memory markets, see our coverage of Semiconductors.
Source note: This article includes information reported by Tom's Hardware.
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