872481-B21: HPE 1.8TB SAS 12G Enterprise 10K SFF SC 512e Digitally Signed Firmware HDD
Also listed as: 872738-001, 872480-001, ST1800MM0129, EG001800JWJNR, EG001800JWFUV · made by Seagate
The HPE 872481-B21 is a 1.8TB 10,000 RPM 2.5-inch Small Form Factor SAS 12Gb/s enterprise hard drive mounted in an HPE SmartCarrier (SC). Operating with 512e advanced format sectors and HPE digitally signed firmware, it represents the highest capacity point in HPE's 10K SFF hard drive family for ProLiant Gen8, Gen9, and Gen10 servers. Used buyers must inspect SmartCarrier status LEDs and verify reallocated sector counts.
Specifications
| Part number | 872481-B21 |
|---|---|
| Brand | HPE |
| Made by | Seagate |
| Type | Hard drives |
| Other numbers | 872738-001, 872480-001, ST1800MM0129, EG001800JWJNR, EG001800JWFUV |
| Status | end of sale |
| Capacity (GB) | 1,800 |
| Interface | SAS 12Gb/s |
| Form factor | SFF 2.5in |
| Speed | 10K rpm |
| Carrier | SmartCarrier (SC) |
| Carrier type | SC |
| Sector format | 512e |
| Vendor model | ST1800MM0129 |
| Generation fit | Gen8 / Gen9 / Gen10 |
About the 872481-B21
The HPE 872481-B21 represents the capacity pinnacle of 2.5-inch 10K RPM spinning magnetic storage in HPE's ProLiant enterprise server portfolio. Delivering 1.8TB of formatted storage in a 15mm SFF profile, it utilizes 512e advanced format sector emulation to combine high mechanical storage density with enterprise mission-critical SAS reliability. It served as primary storage for large messaging servers, transactional databases, and virtual machine hosts before solid-state drives assumed dominance.
Compatibility
Compatible with standard 2.5-inch SFF hot-plug drive bays across HPE ProLiant Gen8, Gen9, and Gen10 servers (such as DL380, DL360, DL560, and ML350) equipped with SmartCarrier backplanes. It does not fit directly into Gen10 Plus or Gen11 servers that require Basic Carrier (BC) trays, nor does it fit large form factor 3.5-inch bays without an SFF-to-LFF converter bracket. A 12Gb/s SAS Smart Array or HBA controller is required for full interface speed.
How to identify a genuine unit
Genuine units feature the HPE enterprise drive label with Option Part Number 872481-B21, Spare Part Number 872738-001, and Assembly Model Number EG001800JWJNR. The bare drive beneath the caddy is a Seagate Enterprise Performance 10K drive (model ST1800MM0129). In HPE Smart Storage Administrator (SSA) and iLO, it reports HPE digitally signed firmware (such as HPD8 or HPD9) and displays the blue 'do not remove' activity ring on the caddy.
Buying used
When evaluating second-hand 872481-B21 drives, inspect the SmartCarrier latch assembly and light pipes for physical damage. Query the drive's SMART health data via HPE SSA or smartctl, paying strict attention to Reallocated Sector Count, Read/Write Errors, and Total Power-On Hours. Because high-density 10K RPM drives operate under tight mechanical tolerances, discard drives with non-zero grown defect lists.
Reference prices (last 14 days, updated 2026-10-27)
Refurbished: USD 95 (1 sighting, Oct 2026)
Used: USD 58 (1 sighting, Oct 2026)
All sightings
| Seller | Condition | Price | Note | Seen |
|---|---|---|---|---|
| serversupply.com | refurbished | USD 95 | Refurbished drive tested clean SMART | 2026-10-27 |
| ebay.com | used | USD 58 | Working pull, 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 872481-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 ST1800MM0129 Seagate Enterprise Performance 10K HDD 1.8TB 512e SAS bare drive
FAQ
What is 512e format on the 872481-B21?
512e (512 emulation) uses 4KB physical sectors internally while presenting standard 512-byte logical sectors to host operating systems, providing compatibility with legacy file systems.
Can 872481-B21 be used in a Gen10 Plus server?
The 872481-B21 is housed in a SmartCarrier (SC). Gen10 Plus servers use Basic Carrier (BC) trays. To use it in Gen10 Plus, you must remove the bare drive and install it into a BC caddy.
Buying or selling 872481-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 872481-B21 Record, checked 2026-10-27