P40504-B21: HPE 1.92TB SATA 6G Mixed Use SFF BC Multi Vendor SSD
Also listed as: P40504-001, P41085-001, MZ7L31T9HBLT · made by Samsung
An enterprise mixed-use 1.92TB SATA 6Gb/s SSD supplied in an HPE Basic Carrier (BC) tray for ProLiant Gen11 and Gen12 servers. Engineered for balanced read-and-write enterprise workloads such as transactional database logging, analytical caching, and virtual desktop infrastructure, it offers up to 3 drive writes per day endurance. When purchasing second-hand, inspect the flash endurance remaining using smartctl or HPE iLO, confirm genuine HPE firmware, and check that the tray release latch is intact.
Specifications
| Part number | P40504-B21 |
|---|---|
| Brand | HPE |
| Made by | Samsung |
| Type | SSDs |
| Other numbers | P40504-001, P41085-001, MZ7L31T9HBLT |
| Status | current |
| Capacity (GB) | 1,920 |
| Interface | SATA 6Gb/s |
| Form factor | SFF 2.5in, Basic Carrier (BC) |
| Endurance | Mixed Use, 3.0 DWPD |
| Speed | 6Gb/s SATA |
| Generation fit | Gen11 / Gen12 with Basic Carrier drive cages |
About the P40504-B21
P40504-B21 is HPE's 1.92TB Mixed Use 2.5-inch SATA solid state drive in the Basic Carrier format for ProLiant Gen11 and Gen12 enterprise servers. As part of HPE's Multi Vendor program, it qualifies enterprise flash hardware from top-tier NAND manufacturers such as Samsung and Micron under standardized HPE digitally signed firmware. Rated for 3.0 drive writes per day (DWPD), it sits between cost-optimized read-intensive SATA SSDs and high-speed NVMe drives, providing robust write endurance for database journals, virtual desktop infrastructures, and high-frequency caching.
Compatibility
This drive installs into any 2.5-inch small form factor drive bay of ProLiant Gen11 and Gen12 servers, including the DL360 Gen11, DL380 Gen11, DL385 Gen11, and ML350 Gen11. It ships premounted in the HPE Basic Carrier (BC), which cannot be inserted into the Smart Carrier (SC) bays of ProLiant Gen10, Gen9, or Gen8 platforms. The drive operates over SATA 6Gb/s and functions behind direct onboard SATA controllers, HPE Smart Array controllers, or modern tri-mode RAID adapters. The retail option code is P40504-B21, while maintenance spares carry part numbers P41085-001 or P40504-001.
How to identify a genuine unit
An authentic P40504-B21 features an HPE security label listing the option part number, spare part number, and HPE firmware revision, alongside OEM manufacturer labels from suppliers like Samsung or Micron. In iLO 6, the drive appears under the Storage inventory recognized as an authentic HPE Multi Vendor device with valid cryptographic signatures. Drives without HPE firmware will trigger third-party storage notifications in iLO and will not support automated firmware updates through HPE Service Pack for ProLiant (SPP).
Buying used
Because this is a mixed-use drive rated for 3 DWPD, used units typically retain considerable endurance headroom even after multi-year enterprise service. Request an iLO health report or smartctl output showing total terabytes written (TBW), power-on hours, and media wear indicators before purchasing. Confirm the Basic Carrier is physically included and that its spring-loaded latch and activity LEDs operate smoothly, as bare drives require separate carrier purchases that increase total acquisition costs.
Reference prices (last 14 days, updated 2026-10-27)
New: USD 1,696 to 2,748 (3 sightings, Oct 2026)
All sightings
| Seller | Condition | Price | Note | Seen |
|---|---|---|---|---|
| serversupply.com | new | USD 2,450 | new in box | 2026-10-27 |
| harddrivesdirect.com | new | USD 1,695.95 | new with factory warranty | 2026-10-27 |
| globalonetechnology.com | new | USD 2,748 | list price | 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 Gen11
- HPE ProLiant DL360 Gen11
- HPE ProLiant DL385 Gen11
- HPE ProLiant DL325 Gen11
- HPE ProLiant ML350 Gen11
Equivalent part numbers
- Samsung MZ7L31T9HBLT-00A07 Retail enterprise mixed-use equivalent
FAQ
What is the difference between P40499-B21 and P40504-B21?
P40499-B21 is Read Intensive (0.8 DWPD), whereas P40504-B21 is Mixed Use (3.0 DWPD), designed for write-heavy workloads with higher endurance.
Does this drive fit in HPE Apollo or Synergy systems?
It fits any HPE system utilizing SFF Basic Carrier (BC) bays. It does not fit Smart Carrier (SC) bays.
Buying or selling P40504-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 SATA 6G Enterprise SSDs QuickSpecs, checked 2026-10-27