Seagate · Exos X
ST30000NM004K is Seagate Exos X 30TB SATA-6G. 3 of its 5 segments are defined in Seagate's published documentation and decoded below; for the rest we have not found a defining document, and they are marked as such. No live listings right now - the reference material below still applies.
| Segment | What it means | Source |
|---|---|---|
| ST | Seagate product prefix. | Seagate |
| 30000 | Capacity field. 30000 denotes 30TB of formatted capacity. | Seagate |
| NM | Enterprise nearline family (Exos and its OEM equivalents). | Seagate |
| 004 | Not sourced - we have not found a Seagate document defining this segment. | Not sourced |
| K | Not sourced - we have not found a Seagate document defining this segment. | Not sourced |
We decode only what the manufacturer documents. There is a large body of community knowledge about the undocumented segments above, much of it probably right, and none of it published by Seagate - so it does not appear in this table. A reading nobody can check does not belong in a column headed “what it means”. Grammar reference: Seagate - product part-number and model-number decoding.
ST30000NM004K is Seagate Exos X, a 30TB hard drive on SATA-6G.
We hold no live listing against this exact part number at the moment. 8 sibling part numbers are documented below - these are the numbers most often mistaken for this one, and the table marks which fields actually differ.
| Manufacturer | Seagate |
| Family | Exos X |
| Capacity | 30TB |
| Interface | SATA-6G |
| Product class | HDD |
These are the part numbers most often confused with ST30000NM004K. The differences below come from the same vendor documentation as the decode above - where a field is not documented, the row leaves it blank rather than guessing.
| Part number | Capacity | Interface | Format | |
|---|---|---|---|---|
| ST12000NM002G | 12TB | SAS-12G | in catalogue | |
| ST16000NM001G | 16TB | SATA-6G | in catalogue | |
| ST16000NM002G | 16TB | SAS-12G | in catalogue | |
| ST18000NM003D | 18TB | SATA-6G | in catalogue | |
| ST22000NM001H | 22TB | SATA-6G | in catalogue | |
| ST24000NM000H | 24TB | SATA-6G | in catalogue | |
| ST24000NM002H | 24TB | SATA-6G | in catalogue | |
| ST32000NM004K | 32TB | SATA-6G | in catalogue |
Amber cells differ from ST30000NM004K; grey cells match it.
No seller we track has ST30000NM004K in stock right now. That describes today's listings only - it says nothing about whether the model is discontinued. We are not going to fill this space with something else and call it a match. The decode, specifications and sibling table above are the reference answer for this part number and remain accurate whether or not anyone is selling one today. If you need the capacity rather than this specific part, the alternatives below are what is actually buyable.
A manufacturer part number does not imply a manufacturer warranty, and this is where part-number buyers lose the most money. OEM stock, integrator pulls and gray-market units all reach the market under the maker's own numbering. Retailers selling them sometimes state plainly that the manufacturer warranty is none; others simply do not mention it, which is not the same as it being covered.
Coverage attaches to the individual unit and its serial number, not to the part number. That means the only reliable answer comes from the manufacturer, about the specific drive you are being sold.
Ask the seller for the serial number before purchase, then enter it in Seagate warranty checker. We link the tool rather than showing a result here, because the answer depends on the individual drive and only Seagate can give it.
A seller warranty is a different promise from a different company. What each warranty tier actually covers · Verify on arrival
4 in-stock listings · nothing at this capacity is in stock, so these are the nearest capacities · ranked by live cost per tb, refreshed about once a day
| Drive | Capacity | Interface | Recording | Condition | $/TB | Price | |
|---|---|---|---|---|---|---|---|
| MDD 18TB SATA 7200RPM NAS MDD18TS25672NAS | 18TB | SATA-6G | — | REFURB This offer: sold by goHardDrive · Amazon says New / New · title says Renewed | $28.33 | $510 | Buy/View Price |
| WD DC HC550 18TB SATA 512MB Enterprise WUH721818ALE6L4 | 18TB | SATA-6G | EPMR | REFURB This offer: sold by Dealforless · Amazon says Used / Good | $28.89 | $520 | Buy/View Price |
| WD Red Pro 18TB WD181KFGX WD181KFGX | 18TB | SATA-6G | CMR | REFURB This offer: sold by PrimeDrive · Amazon says New / New · title says Renewed | $29.88 | $538 | Buy/View Price |
| MDD 18TB SATA 7200RPM Enterprise MDD18TSATA25672E | 18TB | SATA-6G | — | REFURB This offer: sold by goHardDrive · Amazon says New / New · title says Renewed | $30.00 | $540 | Buy/View Price |
Every 30TB drive we track, ranked by cost per terabyte.
ST30000NM004K is Seagate Exos X 30TB SATA-6G. 3 of its 5 segments are defined in Seagate's own published documentation - the decode table on this page shows each one with the document that defines it. For the remaining segments we have not found a defining document, and we say so rather than repeating a community guess as fact.
Not necessarily, and the part number cannot tell you. Coverage depends on how the individual unit entered the market and whether it was registered, not on its model designation. OEM and gray-market stock reaches the market under manufacturer part numbers regularly and frequently carries no manufacturer warranty at all - some retailers print exactly that on the listing. Check the specific serial with Seagate's own tool, linked in the warranty section on this page.
Both are in the Exos X range. The clearest difference is capacity - 30TB against 12TB. They differ in interface: SATA-6G against SAS-12G, which decides whether the drive fits your controller. The variant table on this page lists every sibling we document with what differs.
We hold no live listing for this part number right now. That is the honest state rather than a broken page - this remains the reference answer for what ST30000NM004K is, how it decodes and which siblings it is confused with. The alternatives section below shows what is currently buyable at the same capacity.
Because more than one organisation names it. The manufacturer assigns a model number describing the product; a server vendor buying it in volume assigns its own spare-part number for its service catalogue; distributors sometimes add another. All identify the same physical drive, which is why one number returns listings that look like a different product. Our part number index explains the pattern per vendor.