870759-B21: HPE 900GB SAS 12G Enterprise 15K SFF SC Digitally Signed Firmware HDD
Also listed as: 870795-001, 870758-001, ST900MP0146, EH000900JWHPP · made by Seagate
The HPE 870759-B21 is a 900GB 15,000 RPM 2.5-inch SFF SAS 12Gb/s enterprise hard drive pre-mounted in an HPE SmartCarrier (SC). Engineered for mission-critical transactional databases requiring maximum mechanical spindle speed and sub-3ms rotational latency, it represents the highest-capacity 15K RPM drive manufactured for ProLiant Gen8, Gen9, and Gen10 platforms. Used buyers should test for mechanical bearing noise and verify zero grown defect counts.
Specifications
| Part number | 870759-B21 |
|---|---|
| Brand | HPE |
| Made by | Seagate |
| Type | Hard drives |
| Other numbers | 870795-001, 870758-001, ST900MP0146, EH000900JWHPP |
| Status | end of sale |
| Capacity (GB) | 900 |
| Interface | SAS 12Gb/s |
| Form factor | SFF 2.5in |
| Speed | 15K rpm |
| Carrier | SmartCarrier (SC) |
| Carrier type | SC |
| Vendor model | ST900MP0146 |
| Generation fit | Gen8 / Gen9 / Gen10 |
About the 870759-B21
The HPE 870759-B21 is the maximum capacity point in HPE's 15,000 RPM 2.5-inch enterprise drive line. Delivering 900GB on a 12Gb/s SAS dual-port interface, 15K RPM drives were engineered to provide the highest IOPS per spindle and shortest access times achievable with magnetic storage media. Primarily targeted at high-concurrency database logging, financial transaction processing, and legacy OLTP applications, this drive represents the final generation of 15K mechanical technology before SSDs replaced high-speed spindles.
Compatibility
Compatible with HPE ProLiant Gen8, Gen9, and Gen10 servers using 2.5-inch SmartCarrier backplanes (such as DL380, DL360, DL560, and ML350 Gen10). It cannot be inserted directly into Gen10 Plus or Gen11 servers that employ Basic Carrier (BC) cages without caddy modification. Requires an active SAS RAID controller or HBA, as 15K SAS drives cannot operate on motherboard SATA controllers.
How to identify a genuine unit
Genuine units feature an HPE drive label specifying Option Part Number 870759-B21, Spare Part Number 870795-001, and Assembly Part Number EH000900JWHPP. The internal hard drive is a Seagate Enterprise Performance 15K HDD (ST900MP0146). Under HPE Smart Storage Administrator and iLO, the drive displays valid HPE digitally signed firmware revisions and active SmartCarrier LED telemetry.
Buying used
When evaluating used 15K SAS hard drives, spin up the drive in a test bench and listen carefully for spindle bearing whine or head-parking clicks. 15,000 RPM motors generate significant internal friction and operating heat; check Power-On Hours and verify that operating temperatures have not exceeded 60C. Inspect SMART logs to verify zero reallocated sectors and confirm that uncorrected read/write errors are zero.
Reference prices (last 14 days, updated 2026-10-27)
Refurbished: USD 85 (1 sighting, Oct 2026)
Used: USD 48 (1 sighting, Oct 2026)
All sightings
| Seller | Condition | Price | Note | Seen |
|---|---|---|---|---|
| serversupply.com | refurbished | USD 85 | Refurbished drive tested clean SMART | 2026-10-27 |
| ebay.com | used | USD 48 | Working pull with genuine HPE firmware | 2026-10-27 |
Prices seen on public listings on the dates shown, before tax and shipping. Not an offer.
Fits these models
- HPE ProLiant DL380 Gen10
- HPE ProLiant DL360 Gen10
- HPE ProLiant DL560 Gen10
- HPE ProLiant DL580 Gen10
- HPE ProLiant ML350 Gen10
Check compatibility with HPE
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that HPE has tested with the HPE 870759-B21.
- Compatibility HPE SPOCK (storage, SAN and host compatibility)
- Part lookup HPE PartSurfer (spare and option part numbers)
- Support HPE Support Center
Equivalent part numbers
- Seagate ST900MP0146 Seagate Enterprise Performance 15K HDD 900GB SAS bare drive
FAQ
Why were 15K RPM hard drives like 870759-B21 phased out?
Enterprise SATA and SAS solid-state drives offer 50 to 100 times higher random IOPS, zero mechanical latency, lower power consumption, and higher capacity at comparable or lower cost per gigabyte.
Can 870759-B21 mix with 10K RPM drives in the same RAID array?
While the controller technically permits mixing, it is strongly discouraged because the array will be constrained by the rotational timing and capacity of the slower 10K drives.
Buying or selling 870759-B21?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- HPE Server Hard Drives QuickSpecs, checked 2026-10-27
- HPE PartSurfer 870759-B21 Record, checked 2026-10-27