4TB NVMe SSD Prices: History, Lows and Today's Cheapest

What changed and why

Four terabytes is the capacity where flash stopped being an obvious buy in 2026. It is large enough that the flash dominates the bill of materials, so it tracked the NAND price closely, and the reported figures show it: the 990 Pro 4 TB at US$994 against a US$249 low, the SN850X 4 TB at US$689 against US$200. Mainstream NVMe went from roughly US$50 per terabyte in mid-2023 to a US$190 peak in July 2026.

Our series begins at our first recorded reading. We do not import a price history from a tracker and present it as our own observation, and we do not estimate backwards. Where a published figure exists for an earlier date it is drawn as its own attributed layer, so you can always tell which numbers we observed and which we are quoting.

A price history page that appears fully formed on the day it launches has been reconstructed from somewhere. Reconstructions are where convenient numbers hide, because nobody can check them. The cost of our approach is that this chart is short at first; the benefit is that every point on it is a price that actually existed when we looked.

How to judge whether today is a good price

A single price tells you very little without a reference. Three are worth having. The first is the per-terabyte figure in the live table above, which lets you compare this drive against every other capacity and model we track rather than against its own past. The second is the published low, shown in the table below, which tells you how far the market has moved rather than how good a deal you are being offered today. The third is the shape of the segment: if every comparable drive sits in a narrow band, there is no deal to wait for.

What rarely helps is comparing against a price you remember. Memory anchors to the best figure you ever saw, which in this market was usually a promotional price from a different supply environment. Judging a 2026 purchase against a 2023 low guarantees disappointment and frequently produces a worse decision than simply buying what the machine needs.

Who it hits, and how hard

Single-slot machines are where 4 TB matters most, because there is no option to add a second drive later. The premium is worth paying when the alternative is no upgrade path at all.

Desktop builders with spare slots should price two 2 TB drives against one 4 TB before committing; through 2026 the smaller pair has frequently been cheaper per terabyte.

NAS and cache buyers rarely need 4 TB of flash. A smaller cache in front of spinning storage usually delivers more for the money; see our flash versus spinning comparison.

Console buyers should check the sustained sequential requirement rather than peak figures, and budget for a heatsink if the drive does not include one.

What to do now

1. Compare the per-terabyte column in the live table rather than the sticker price when choosing a capacity.
2. Check the whole segment on our SSD price per TB page before settling on one model.
3. Convert endurance to a size-independent figure with the DWPD calculator.
4. Estimate real lifespan at your write rate with the lifespan calculator.
5. Read why SSD prices rose before concluding today's price is an anomaly.
6. Check the published forecasts before deciding to wait for a better price.

Outlook

We do not forecast. This page records a reading every six hours and publishes the series as it accumulates. The published forecasts for the wider NAND market are below, each with its date.

We publish no forecast of our own. Everything above is someone else's published position, with the date it was published and a link to it, because a price forecast from a site that sells against those prices is worth nothing to you.