HPE P40503-B21 is the exact ordering identifier covered here, in the SATA SSDs range. The reviewed specification records capacity: 960 GB; type: SSD; interface: SATA 6G. Use this guide to decide what to include in a configuration request, rather than treating similar model numbers as interchangeable.
Specifications that define this model
The values below retain the source qualifiers. A missing field is not evidence that a capability is included or absent.
| Specification | Recorded value |
|---|---|
| Capacity | 960 GB |
| Type | SSD |
| Interface | SATA 6G |
| Endurance | Mixed use |
| Carrier / tray | SFF BC |
| Fits | HPE ProLiant DL380 Gen11 |
How to evaluate this exact configuration
Drive capacity
Drive capacity for P40503-B21: 960 GB. Record the required number of drives and the intended storage layout. Drive capacity is not usable array capacity after formatting, redundancy and reserved space.
Storage connection
Storage connection for P40503-B21: SATA 6G. Check the backplane, controller, cabling and supported operating mode. The stated interface rate is not a measured sustained read or write rate.
Carrier designation
Carrier designation for P40503-B21: SFF BC. Keep the carrier and option identifier on the quote. A similar capacity or physical size does not prove that another carrier or spare-part code will fit the same configuration.
Workload designation
Workload designation for P40503-B21: Mixed use. Match the expected write workload and verify the applicable endurance specification in the source document. Do not turn a workload label into an invented writes-per-day rating.
Documented platform scope
Documented platform scope for P40503-B21: HPE ProLiant DL380 Gen11. Verify the exact generation and storage path. Select any controller, cage, cooling and cable dependencies together rather than treating a family listing as blanket fitment approval.
Compare nearby ordering codes
| Model | Capacity | Endurance | Interface |
|---|---|---|---|
| P40503-B21 | 960 GB | Mixed use | SATA 6G |
| P40497-B21 | 480 GB | Read intensive | SATA 6G |
| P40504-B21 | 1.92 TB | Mixed use | SATA 6G |
These are specification comparisons, not statements that the models are drop-in replacements. Compare the configuration limits before choosing an alternative.
P40497-B21 manufacturer reference · P40504-B21 manufacturer reference
Questions before you request a quote
Which product does P40503-B21 identify?
It identifies HPE 960GB SATA 6G mixed-use SFF BC SSD. Keep P40503-B21 on the requirement and quote; a family name alone does not fix the ordering configuration.
What compatibility scope is recorded for P40503-B21?
The recorded scope is HPE ProLiant DL380 Gen11. Confirm the exact machine generation and configuration in the manufacturer guide; this is not a blanket compatibility promise.
What should I check before ordering P40503-B21?
Start with the specification and configuration checks above, then state the quantity, destination and intended connections or platform. Ask for the exact contents of the offered configuration and identify every proposed substitution separately.
Build a clear requirement
Specify P40503-B21, quantity and delivery country, then add the configuration information discussed above. Keep accessories and any accepted alternative as separate lines. Request current pricing and availability rather than relying on an article for live commercial information.
View the P40503-B21 product listing · Browse HPE drives · Request a quote
For the wider selection process, read the related buying guide.
Sources and scope
Document and identifier checks: 2026-10-17. Prepared from manufacturer documentation and the catalogue's recorded specifications; no hands-on benchmark is claimed. Confirm destination-specific options and configuration eligibility against the source documents. Prices, stock, delivery dates and coverage terms are not established by this guide.