Replacement for 874009-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 874009-B21 (874009-B21 - HP 550-Watts Hot-Pluggable Redundant 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 874009-B21
| SKU | 874009-B21 |
|---|---|
| Product | 874009-B21 - HP 550-Watts Hot-Pluggable Redundant Power Supply |
| Current price | $438.16 |
| Stock status | In Stock |
| Detail page | View 874009-B21 › |
Drop-in replacements for 874009-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.
744689-B21 - HP 800-Watts Redundant 900-Watts Non-Redundant Hot Pluggable AC Power Supply for DL180 ML150 Gen9 G9
SKU: 744689-B21
Price: $47.37
878923-001 - HP 550-Watts Hot-Pluggable Redundant Power Supply For HP Proliant ML110 G10 Gen10
SKU: 878923-001
Price: $417.54
A5527-69001 - HP 550-Watts 110-240V Redundant Hot Swappable Power Supply
SKU: A5527-69001
Price: $157.07
813534-B21 - HP 800-Watts Redundant / 900-Watts Non-Redundant AC Power Supply Gold for ProLiant DL160 G9 / DL80 G9 / DL120 G9
SKU: 813534-B21
Price: $211.00
399542-B21 - HP 700-Watts Redundant Hot-Pluggable Power Supply with Power Form Correction (PFC) for ProLiant DL360 G5
SKU: 399542-B21
Price: $71.58
DPS-460BB - HP 460-Watts AC 100-240V AC Redundant Hot-Pluggable Power Supply with Active Power Factor Correction for ProLiant DL360 G4
SKU: DPS-460BB
Price: $71.58
349800-001 - HP 400-Watts Redundant Hot-Pluggable Power Supply with Power Factor Correction for StorageWorks MSA20 Storage Enclosure
SKU: 349800-001
Price: $71.58
313054-001 - HP 400-Watts AC 100-240 V Redundant Hot-Pluggable Power Supply with Power Factor Correction for ProLiant DL380 G2 G3 Server
SKU: 313054-001
Price: $71.58
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.