HPE P38995-B21 is the exact ordering identifier covered here, in the Flex Slot Power Supplies range. The reviewed specification records output: 800 W; input: 100–240V AC; 50–60Hz; hot-plug: Yes. 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 |
|---|---|
| Output | 800 W |
| Input | 100–240V AC; 50–60Hz |
| Hot-plug | Yes |
| Fits | HPE ProLiant DL380 Gen11 |
How to evaluate this exact configuration
Rated output
Rated output for P38995-B21: 800 W. Size against the complete system configuration and manufacturer power guidance. Rated output is not the system's constant power consumption.
Input requirement
Input requirement for P38995-B21: 100–240V AC; 50–60Hz. Check the actual power feed, voltage, cord and inlet. Retain input-voltage qualifications rather than assuming the rated output applies to every installation.
Documented platform scope
Documented platform scope for P38995-B21: HPE ProLiant DL380 Gen11. Check the supported supply combinations and redundancy arrangement for the exact system. A matching wattage is not enough to establish interchangeability.
Compare nearby ordering codes
| Model | Output | Input | Hot-plug |
|---|---|---|---|
| P38995-B21 | 800 W | 100–240V AC; 50–60Hz | Yes |
| P38997-B21 | 1,600 W | 200–240V AC only | Yes |
| P03178-B21 | 1,000 W | Not recorded | Yes |
These are specification comparisons, not statements that the models are drop-in replacements. Compare the configuration limits before choosing an alternative.
P38997-B21 manufacturer reference · P03178-B21 manufacturer reference
Questions before you request a quote
Which product does P38995-B21 identify?
It identifies HPE 800W Flex Slot Platinum hot-plug power supply. Keep P38995-B21 on the requirement and quote; a family name alone does not fix the ordering configuration.
What compatibility scope is recorded for P38995-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 P38995-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 P38995-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 P38995-B21 product listing · Browse HPE power supplies · 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.