P38995-B21: HPE 800W Flex Slot Platinum Hot Plug Low Halogen Power Supply Kit
Also listed as: P38995-001, P39385-001, 865409-002, DPS-800AB-34 B · made by Delta Electronics
An 800-watt hot-pluggable power supply module certified for 80 PLUS Platinum efficiency (up to 94%) in the standardized HPE Flexible Slot physical form factor, updated for EU Lot 9 compliance. Serving as the primary 800W power supply specification for HPE ProLiant Gen10 Plus, Gen11, and Gen12 servers, it accepts universal AC input (100V-240V) and provides N+1 tool-less redundancy. Second-hand units should be inspected for clean backplane edge fingers, smooth fan rotation, and valid iLO power telemetry.
Specifications
| Part number | P38995-B21 |
|---|---|
| Brand | HPE |
| Made by | Delta Electronics |
| Type | Power supplies |
| Other numbers | P38995-001, P39385-001, 865409-002, DPS-800AB-34 B |
| Status | current |
| Interface | HPE Flex Slot hot-plug edge connector |
| Form factor | Flex Slot |
| Tdp (W) | 800 |
| Generation fit | ProLiant Gen10 Plus / Gen11 / Gen12 servers |
About the P38995-B21
P38995-B21 is HPE's updated 800W Flex Slot Platinum Hot Plug Low Halogen Power Supply Kit. Rated for 80 PLUS Platinum efficiency (up to 94 percent efficiency), it was introduced to meet stringent European Union Lot 9 eco-design efficiency regulations and serves as the primary 800W power supply option for ProLiant Gen10 Plus, Gen11, and Gen12 compute platforms. Replacing the legacy 865414-B21 part number in newer server quickspecs, it delivers reliable high-efficiency power conversion across universal low-line and high-line electrical inputs.
Compatibility
This power supply is compatible with HPE Flexible Slot bays across ProLiant Gen10 Plus and Gen11 rack and tower servers, including the DL360 Gen10 Plus, DL380 Gen10 Plus, DL360 Gen11, DL380 Gen11, DL385 Gen11, DL325 Gen11, and ML350 Gen11. It connects via a standard IEC C13 power cord and operates across 100V-240V AC inputs. In redundant configurations, all installed power supplies must match in wattage and efficiency rating. The ordering SKU is P38995-B21, with spare part number P39385-001 and generic part number 865409-002.
How to identify a genuine unit
A genuine P38995-B21 unit features an authentic HPE manufacturing label displaying option part number P38995-B21, spare number P39385-001, GPN 865409-002, and the 80 PLUS Platinum efficiency logo. Inside iLO 5 or iLO 6 under Power Management, the module authenticates with official HPE firmware, reporting real-time input voltage, current amperage draw, temperature readings, and active power capping metrics.
Buying used
When purchasing used P38995-B21 units, inspect the rear gold card-edge connector for scratches, pitting, or carbon scorching caused by live hot-plug arc discharge. Spin the internal high-CFM cooling fan by hand to ensure free, whisper-quiet rotation without bearing drag. Check that the quick-release latch engages firmly and verify that iLO reports healthy power telemetry upon installation.
Reference prices (last 14 days, updated 2026-10-27)
New: USD 130 (1 sighting, Oct 2026)
Refurbished: USD 88 (1 sighting, Oct 2026)
All sightings
| Seller | Condition | Price | Note | Seen |
|---|---|---|---|---|
| serversupply.com | new | USD 130 | new in box | 2026-10-27 |
| globalonetechnology.com | refurbished | USD 88 | refurbished / tested | 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 Plus
- HPE ProLiant DL380 Gen11
- HPE ProLiant DL360 Gen10 Plus
- HPE ProLiant DL360 Gen11
- HPE ProLiant DL385 Gen10 Plus v2
- HPE ProLiant DL385 Gen11
- HPE ProLiant DL325 Gen10 Plus v2
- HPE ProLiant DL325 Gen11
- HPE ProLiant DL560 Gen11
- HPE ProLiant ML350 Gen11
Equivalent part numbers
- HPE 865414-B21 HPE 800W Flex Slot Platinum Hot Plug Low Halogen Power Supply Kit Earlier Gen9/Gen10 predecessor 800W Platinum power supply
FAQ
What is the difference between P38995-B21 and 865414-B21?
P38995-B21 is the updated, EU Lot 9 compliant revision of the 800W Platinum Flex Slot power supply designed for Gen10 Plus and Gen11 servers, succeeding the older 865414-B21 SKU.
Can P38995-B21 be mixed with an 865414-B21 in the same server?
While both are 800W Platinum Flex Slot supplies, HPE best practice recommends matching exact part numbers and revision levels within redundant pairs to ensure synchronized power balancing.
Buying or selling P38995-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 Flexible Slot Power Supplies QuickSpecs, checked 2026-10-27