P40505-B21: HPE 3.84TB SATA 6G Mixed Use SFF BC Multi Vendor SSD
Also listed as: P40505-001, P41530-001, P41088-001, MZ7L33T8HBLT, MK003840GZXRV · made by Samsung
An enterprise mixed-use 3.84TB SATA 6Gb/s solid state drive in an HPE Basic Carrier (BC) tray for ProLiant Gen11 and Gen12 servers. Built for balanced write-and-read database transactions, analytical caches, and virtualized workloads, it offers high write endurance rated at 3.0 drive writes per day (up to 22,000 TBW). When acquiring second-hand units, verify total bytes written and power-on hours in iLO, confirm genuine HPE digitally signed firmware, and check carrier latch integrity.
Specifications
| Part number | P40505-B21 |
|---|---|
| Brand | HPE |
| Made by | Samsung |
| Type | SSDs |
| Other numbers | P40505-001, P41530-001, P41088-001, MZ7L33T8HBLT, MK003840GZXRV |
| Status | current |
| Capacity (GB) | 3,840 |
| 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 P40505-B21
P40505-B21 is HPE's 3.84TB Mixed Use 2.5-inch SATA solid state drive in the Basic Carrier format for ProLiant Gen11 and Gen12 servers. Developed under HPE's Multi Vendor program using enterprise flash hardware from top-tier NAND manufacturers such as Samsung and Micron, it runs standardized HPE digitally signed firmware. Rated for 3.0 drive writes per day (up to 22,000 TBW lifetime write endurance), it provides high write endurance for transactional database logging, virtual desktop infrastructure (VDI), and active transaction processing where standard read-intensive drives would exhaust endurance too quickly.
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 P40505-B21, while maintenance spares carry part number P41530-001 or assembly number P41088-001.
How to identify a genuine unit
An authentic P40505-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 (22,000 TBW), 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 3,150 to 4,155 (2 sightings, Oct 2026)
All sightings
| Seller | Condition | Price | Note | Seen |
|---|---|---|---|---|
| serversupply.com | new | USD 3,150 | new in box with Basic Carrier | 2026-10-27 |
| globalonetechnology.com | new | USD 4,155 | new sealed stock | 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 MZ7L33T8HBLT Retail enterprise mixed-use equivalent SATA drive
FAQ
What is the endurance rating of P40505-B21 compared to P40500-B21?
P40505-B21 is Mixed Use rated at 3.0 DWPD (approx. 22,000 TBW), while P40500-B21 is Read Intensive rated at 0.8 DWPD (approx. 3,400 TBW).
Does P40505-B21 fit into a Gen10 server?
No. P40505-B21 uses the HPE Basic Carrier (BC) for Gen11/Gen12 servers. ProLiant Gen10 servers require drives in Smart Carrier (SC) trays.
Buying or selling P40505-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