Replacement for 865438-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 865438-B21 (865438-B21 - HP 800-Watts Flex Slot Titanium Hot Pluggable Low Halogen Power Supply)? Pro Disk Network ships HP drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the 865438-B21
| SKU | 865438-B21 |
|---|---|
| Product | 865438-B21 - HP 800-Watts Flex Slot Titanium Hot Pluggable Low Halogen Power Supply |
| Current price | $976.84 |
| Stock status | In Stock |
| Detail page | View 865438-B21 › |
Drop-in replacements for 865438-B21
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
734870-101 - HP 800-Watts Flex Slot Titanium Hot-Pluggable Power Supply
SKU: 734870-101
Price: $173.68
734870-001 - HP 800-Watts Flex Slot Titanium Hot-Pluggable Power Supply
SKU: 734870-001
Price: $344.33
865435-001 - HPE 800-Watts Flex Slot Titanium Hot Plugable Power Supply for Proliant DL 385 Gen10
SKU: 865435-001
Price: $200.00
HSTNS-PD44 - HP 800-Watts Flex Slot Titanium Power Supply for ProLiant DL360 Gen10
SKU: HSTNS-PD44
Price: $282.20
723599-001 - HP 800-Watts 94% Efficiency Flex Slot Platinum Redundant Hot-Pluggable 1U Power Supply for ProLiant DL360 DL380 ML350 Gen9
SKU: 723599-001
Price: $50.53
754381-001 - HP 800-Watts 100-240V AC 94% Efficiency Flex Slot Platinum Redundant Hot-Pluggable 1U Power Supply for Proliant DL360 DL380 ML350 Gen9
SKU: 754381-001
Price: $50.53
816449-B21 - HP 800-Watts Flex Slot Platinum Hot-Pluggable Power Supply Kit for ProLiant DL360/ DL380/ ML350 Gen9
SKU: 816449-B21
Price: $220.91
865414-B21 - HP 800-Watts Flex Slot Platinum Hot Pluggable Low Halogen Power Supply Kit for ProLiant Dl580 Gen10
SKU: 865414-B21
Price: $229.47
865428-B21 - HP 800-Watts Flex Slot Universal Hot Pluggable Low Halogen Power Supply Kit
SKU: 865428-B21
Price: $292.63
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.