18tb hard drives
18TB hard drives by cost per terabyte
Every 18TB drive in the index, SAS and SATA, across new, refurbished and used listings. At this capacity the price spread between conditions is usually where the decision gets made.
Models tracked
15
best $/TB
$20.17
average $/TB
$27.23
Not sure what SAS / SATA / NVMe means? Try our 3-question buyer’s guide →
| Drive | Cond. | Buy | |||
|---|---|---|---|---|---|
| 18TB | Used | $363.00 | $20.17 | Buy → | |
WD Ultrastar DC HC550 WUH721818ALE6L4 Listing identity unconfirmed. We cannot confirm this listing is exactly this model, so we do not rate it. | 18TB | Used | $371.99 | $20.67 | Buy → |
Seagate Exos X18 ST18000NM004J Listing identity unconfirmed. We cannot confirm this listing is exactly this model, so we do not rate it. | 18TB | Used | $374.78 | $20.82 | Buy → |
| 18TB | Used | $397.00 | $22.06 | Buy → | |
| 18TB | Used | $399.99 | $22.22 | Buy → | |
| 18TB | Used | $415.00 | $23.06 | Buy → | |
| 18TB | Used | $425.00 | $23.61 | Buy → | |
| 18TB | New | $451.98 | $25.11 | Buy → | |
| 18TB | Used | $475.00 | $26.39 | Buy → | |
| 18TB | Used | $479.95 | $26.66 | Buy → | |
| 18TB | Used | $480.00 | $26.67 | Buy → | |
| 18TB | New | $649.00 | $36.06 | Buy → | |
| 18TB | New | $779.00 | $43.28 | Buy → | |
Seagate SkyHawk AI Listing identity unconfirmed. We cannot confirm this listing is exactly this model, so we do not rate it. | 18TB | Used | $799.99 | $44.44 | Buy → |
Dell Enterprise NearlineSample price | 18TB | Refurb | $177.55 | $9.86 | Detail |
prices last checked 2026-10-13 22:07 UTC
Some “Buy” links earn us a commission. Ranking is by cost per terabyte only and is never affected — who pays us.