HP · ProLiant OEM
834031-B21 is HP ProLiant OEM 8TB SAS-12G. 2 of its 2 segments are defined in HP's published documentation and decoded below; for the rest we have not found a defining document, and they are marked as such. 1 live listing below.
| Segment | What it means | Source |
|---|---|---|
| 834031 | HPE part identifier. HPE publishes which product each number corresponds to; we have not found an HPE document giving a character-level grammar for this field. | HPE |
| B21 | Option part number - the orderable product as sold, typically including mounting hardware. | HPE |
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 HP - 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: HPE - spare part numbers and how to find them.
834031-B21 is HP ProLiant OEM, a 8TB hard drive on SAS-12G. Being a SAS device, it needs a SAS host bus adapter or backplane - it will not run from a motherboard SATA port, though a SATA drive will run on a SAS controller.
We currently track 1 live listing against this exact part number. 10 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 | HP |
| Family | ProLiant OEM |
| Capacity | 8TB |
| Interface | SAS-12G |
| Product class | HDD |
These are the part numbers most often confused with 834031-B21. 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 | |
|---|---|---|---|---|
| 508011-001 | 1TB | SAS-6G | in catalogue | |
| 653959-001 | 3TB | SAS-6G | in catalogue | |
| 695510-B21 | 4TB | SAS-6G | in catalogue | |
| 695842-001 | 4TB | SAS-6G | in catalogue | |
| 781518-B21 | 1.2TB | SAS-12G | in catalogue | |
| 781578-001 | 1.2TB | SAS-12G | in catalogue | |
| 791034-B21 | 1.8TB | SAS-12G | in catalogue | |
| 846523-004 | 4TB | SAS-12G | in catalogue | |
| 861754-B21 | 6TB | SAS-12G | in catalogue | |
| 872745-001 | 4TB | SAS-12G | in catalogue |
Amber cells differ from 834031-B21; grey cells match it.
| Listing | Condition | Pack | $/TB | Price | |
|---|---|---|---|---|---|
| HP 834031-B21 8TB SAS LFF | New | single | $32.75 | $262.00 | Buy on Amazon |
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 and check it with HP directly before buying. We do not link a checker for this manufacturer because we have not verified one.
A seller warranty is a different promise from a different company. What each warranty tier actually covers · Verify on arrival
4 in-stock listings · same capacity and interface, any part number · ranked by live cost per tb, refreshed about once a day
| Drive | Capacity | Interface | Recording | Condition | $/TB | Price | |
|---|---|---|---|---|---|---|---|
| Dell M40TH 8TB SAS 12G 512E M40TH | 8TB | SAS-12G | — | REFURB | $30.63 | $245 | Buy on Amazon |
| HP 834031-B21 8TB SAS LFF 834031-B21 | 8TB | SAS-12G | — | NEW | $32.75 | $262 | Buy on Amazon |
| Dell 8TB SAS 12G 512e 3.5 ST8000NM0075 | 8TB | SAS-12G | — | REFURB | $35.63 | $285 | Buy on Amazon |
| HGST Ultrastar He8 8TB SAS 12G NAS HUH728080AL5200 | 8TB | SAS-12G | — | NEW | $36.13 | $289 | Buy on Amazon |
Every 8TB drive we track, ranked by cost per terabyte.
Product pages for 834031-B21: HP 834031-B21 8TB SAS LFF. Each carries that listing's own condition, provenance and alternatives; the priced table above is in-stock offers only.
834031-B21 is HP ProLiant OEM 8TB SAS-12G. 2 of its 2 segments are defined in HP'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.
The part number cannot tell you - coverage follows how the unit entered the market, not its designation. Of the 1 live listing we track for 834031-B21, 1 is sold new and the rest used or recertified, and only the new units can carry HP's own cover. Check the specific serial with the manufacturer before buying.
834031-B21 and 508011-001 are both in the ProLiant OEM range. The clearest difference is capacity - 8TB against 1TB. They differ in interface: SAS-12G against SAS-6G, which decides whether the drive fits your controller. The variant table on this page lists every sibling we document with what differs.
We track 1 live listing carrying this part number, shown above with condition and cost per terabyte; the cheapest sits under ASIN B086Q5KV9Y. Prices come from Amazon US, re-checked about once a day per listing; the buy links go to the live listing because the price can change between our check and your click.