HPE's current Business Critical LFF table places the 26TB options beside 24TB options: P80577-B21/P80578-B21 at 26TB, and P68583-B21/P68585-B21 at 24TB.
Do not assume 26TB is automatically better. It adds 2TB per drive, but the right answer depends on price premium, stock depth, support qualification and spare strategy.
26TB adds 8TB raw over 24TB in a 4-drive set, 16TB in 8 drives, 24TB in 12 drives and 48TB in 24 drives. Buy it only when that added raw capacity is worth the price, qualification and spare-inventory impact.
Verify the part number, carrier, firmware, sector format and server or storage-array qualification before ordering. A bare mechanism or third-party compatible listing can be useful, but it is an alternative unless it is sold as the qualified OEM kit or spare you need.
This is raw decimal capacity only. It is not formatted capacity and it is not RAID usable capacity.
| Drive count | 24TB option | 26TB option | Raw difference |
|---|---|---|---|
| 4 drives | 96TB raw | 104TB raw | 8TB raw |
| 8 drives | 192TB raw | 208TB raw | 16TB raw |
| 12 drives | 288TB raw | 312TB raw | 24TB raw |
| 24 drives | 576TB raw | 624TB raw | 48TB raw |
The interface headline is only one line item. Qualification, carrier, controller and firmware path decide whether the drive is actually buyable for your system.
| Feature | P68583-B21 24TB SAS | P80577-B21 26TB SAS |
|---|---|---|
| SAS option | P68583-B21 | P80577-B21 |
| SATA option | P68585-B21 | P80578-B21 |
| Raw capacity per drive | 24TB | 26TB |
| Increment | Baseline | +2TB per drive |
| Sector format | 512e | 512e |
| Warranty class | HPE Midline 1-year | HPE Midline 1-year |
| Best reason to buy | Lower cost, deeper stock or existing spares | More capacity per qualified LFF bay |
No exact in-stock live row is currently matched for P68583-B21 / P80577-B21. Relevant live alternatives are shown for pricing context; verify qualification before treating any row as a substitute.
Live prices · updated about once a day · last checked 1 hr ago · one side may be unavailable; alternatives are not exact OEM replacements
| Model | Capacity | Recording | RPM | Workload TB/yr | Warranty | $/TB | Price | |
|---|---|---|---|---|---|---|---|---|
| 1TB ST31000640SSREFURB This offer: sold by CSA Computers · Amazon says Used / LikeNew · CSA Computers's note: Certified repaired by Seagate. ST31000640SS. Bulk packed. | 1TB | UNVERIFIED | 7,200 | — | — | $14.99 | $15 | Buy on Amazon |
| 4TB 695842-001 This offer: sold by Computer Supply · Amazon says New / New | 4TB | UNVERIFIED | 7,200 | — | — | $17.00 | $68 | Buy on Amazon |
| 3TB MB3000FBUCNREFURB This offer: sold by Redefine IT · Amazon says New / New · title says Renewed | 3TB | UNVERIFIED | 7,200 | — | — | $19.84 | $60 | Buy on Amazon |
| 1TB 508011-001REFURB This offer: sold by Computer Supply · Amazon says New / New · title says Renewed | 1TB | UNVERIFIED | 7,200 | — | — | $26.99 | $27 | Buy on Amazon |
| 12TB MB012000GWWFEREFURB This offer: sold by Server Connect · Amazon says Used / VeryGood · Server Connect's note: Hard drive is PULL from Server – USED (pack in Regular Brown Box) NOT in original Manufacturer sealed box. Comes with its own Tray / Carrier | 12TB | UNVERIFIED | 7,200 | — | 5 yr | $30.00 | $360 | Buy on Amazon |
| 4TB 846523-004REFURB This offer: sold by Server Connect · Amazon says Used / VeryGood · Server Connect's note: Hard drive is PULL from Server – USED (pack in Regular Brown Box) NOT in original Manufacturer sealed box. Comes with its own Tray / Carrier | 4TB | UNVERIFIED | 7,200 | — | — | $30.00 | $120 | Buy on Amazon |
| 8TB 834031-B21 This offer: sold by CorteseInc · Amazon says New / Unknown | 8TB | UNVERIFIED | 7,200 | — | — | $32.75 | $262 | Buy on Amazon |
| 24TB ST24000NM002HREFURB This offer: sold by goHardDrive · Amazon says New / New · title says Renewed | 24TB | CMR | 7,200 | 550 | 5 yr | $33.29 | $799 | Buy on Amazon |
| 2TB AP072B321REFURB This offer: sold by Dealforless · Amazon says Used / LikeNew | 2TB | UNVERIFIED | 7,200 | — | — | $34.49 | $69 | Buy on Amazon |
| 24TB WUH722624ALE6L4REFURB This offer: sold by BecTech Global · Amazon says Used / LikeNew | 24TB | UNVERIFIED | — | — | — | $41.00 | $984 | Buy on Amazon |
| 24TB ST24000VE002 This offer: sold by QuickDealStore · Amazon says New / Unknown | 24TB | CMR | — | 550 | 5 yr | $42.88 | $1029 | Buy on Amazon |
| 24TB WD241PURPREFURB This offer: sold by Amazon Resale · Amazon says Used / LikeNew · Amazon Resale's note: No item damage observed during inspection. Item will come in original packaging. | 24TB | CMR | 7,200 | 550 | 5 yr | $45.48 | $1092 | Buy on Amazon |
| 24TB ST24000NM000H This offer: sold by ITCP Technologies · Amazon says New / Unknown | 24TB | UNVERIFIED | 7,200 | 550 | 5 yr | $52.70 | $1265 | Buy on Amazon |
| 24TB WD241KFGX This offer: sold by Amazon.com · Amazon says New / Unknown | 24TB | CMR | 7,200 | 550 | 5 yr | $54.66 | $1312 | Buy on Amazon |
Workload rating is recorded per part number from the manufacturer's published data for that exact model where available, not blanketed across the line — two drives of the same capacity can differ because they are different generations. A dash means the figure is not stated for that listing. Recording technology comes from the manufacturer's published CMR/SMR list; a model absent from that list is shown as UNVERIFIED rather than guessed. Rows priced above 3× this line's in-stock median are flagged and excluded from the winner callout and from every median we compute.
This table is computed from live DatacenterDisk rows when an exact in-stock match exists. It is intentionally blank for unavailable models rather than filled with stale prices.
| Live model | Drive price | $/TB | 1 drive | 4 drives | 8 drives | 12 drives |
|---|---|---|---|---|---|---|
| No exact in-stock row is available right now. Use the availability table for nearby live alternatives, then re-check the exact model before ordering. | ||||||
At four drives, 26TB adds only 8TB raw. At 24 drives, it adds 48TB raw. The larger the chassis, the more the extra 2TB per bay can matter, but the financial answer must come from current exact stock and condition.
If the installed fleet already carries 24TB spares, moving to 26TB creates a second spare pool. That can be fine in a new build and expensive in a replacement-heavy fleet.
Newer options can have sparse stock and higher prices. A cheaper, verified 24TB HPE option may be the better buy when procurement needs immediate fulfillment or multiple identical spares.
26TB is 2TB more per drive. That is 8TB extra raw capacity across 4 drives and 48TB extra raw capacity across 24 drives.
The HPE QuickSpecs table used here lists P68583-B21 for 24TB SAS and P68585-B21 for 24TB SATA.
Only if the controller, RAID policy and support matrix allow mixed or replacement behavior. Many arrays should stay homogeneous.
Specification claims on this page were checked against the pages below on 1 September 2026. Where a widely-repeated figure did not survive that check, we report what the source says now and say so in the text rather than repeating the familiar number.