Spend less in the same line
Live retailer offers, specs, and price history.
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ListofDisks take
The lowest visible price we see for Western Digital Ultrastar WUH721818ALE6L4 18TB (18TB HDD SATA CMR) is from Amazon at $36.72/TB ($661.00 total). This lead price comes from a store we show in live offers, but not from the stores we use for the chart. Use the chart before calling it a market low.
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Here are a few similar options from the stores we compare. Open any product page to see its live offers.
Live retailer offers
Current live offers across retailers on this site. Showing all live offers, including 1 non-new.
Stay with Ultrastar and cut the starting price.
Another Ultrastar option from Western Digital at a comparable size.
Compare drive| Amazon via Amazon Marketplace 3rd Party |
$661.00 |
$36.72 |
| Refurbished |
| - |
| Checked 16m ago |
Last known inactive retailers
These retailers had a tracked offer for this product within the last 90 days and were checked recently, but do not have a live offer on the page right now.
Affiliate note. Some links may earn us a commission. Amazon note. As an Amazon Associate, ListofDisks earns from qualifying purchases.
Price history and comparisons
Daily median $/TB from the stores we compare, alongside the lowest qualified offer observed each day.
| Date | Median $/TB | Low $/TB |
|---|---|---|
| Jan 31, 2026 | $22.17 | $22.17 |
| Feb 1, 2026 | $22.17 | $22.17 |
| Feb 3, 2026 | $22.17 | $22.17 |
| Feb 7, 2026 | $22.17 | $22.17 |
| Feb 8, 2026 | $22.17 | $22.17 |
| Feb 9, 2026 | $22.17 | $22.17 |
| Feb 11, 2026 | $22.17 | $22.17 |
| Feb 12, 2026 | $22.17 | $22.17 |
| Feb 13, 2026 | $21.67 | $21.67 |
| Feb 17, 2026 | $22.17 | $22.17 |
| Feb 18, 2026 | $22.17 | $22.17 |
| Feb 19, 2026 | $22.17 | $22.17 |
| Feb 20, 2026 | $22.22 | $15.78 |
| Feb 21, 2026 |
Price history, alerts, and similar-drive comparisons use the smaller set of stores we compare side by side. Live offers above may show more stores.
Median, range, and averages for each week period from the stores we compare.
| Period start | Obs | Median $/TB | Range $/TB | Avg $/TB | Median price |
|---|---|---|---|---|---|
| Jan 26, 2026 | 2 | $22.17 | $22.17 – $22.17 | $22.17 | $398.99 |
| Feb 2, 2026 | 4 | $22.17 | $22.17 – $22.17 | $22.17 | $398.99 |
| Feb 9, 2026 | 7 | $22.17 |
$15.78 |
$15.78 |
| Feb 22, 2026 | $16.22 | $15.78 |
| Feb 23, 2026 | $15.78 | $15.78 |
| Feb 24, 2026 | $15.78 | $15.78 |
| Feb 25, 2026 | $21.67 | $21.67 |
| Feb 26, 2026 | $21.67 | $21.67 |
| Apr 22, 2026 | $35.80 | $35.80 |
| Aug 24, 2026 | $26.06 | $26.06 |
| $21.67 – $22.17 |
| $22.09 |
| $398.99 |
| Feb 16, 2026 | 24 | $22.17 | $15.78 – $30.25 | $20.86 | $398.99 |
| Feb 23, 2026 | 14 | $20.83 | $15.78 – $29.44 | $20.17 | $374.99 |
| Apr 20, 2026 | 1 | $35.80 | $35.80 – $35.80 | $35.80 | $644.46 |
| Aug 24, 2026 | 1 | $26.06 | $26.06 – $26.06 | $26.06 | $469.00 |