Alternative to 515739-B21: Better-Value Equivalents in Stock
Comparing the 515739-B21 (515739-B21 - HP 400-Watts Redundant Hot-Swappable Power Supply for Proliant DL320 G6) against alternatives? Pro Disk Network stocks 12 similar HP parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the 515739-B21
| SKU | 515739-B21 |
|---|---|
| Product | 515739-B21 - HP 400-Watts Redundant Hot-Swappable Power Supply for Proliant DL320 G6 |
| Current price | $165.79 |
| Stock status | In Stock |
| Detail page | View 515739-B21 › |
Alternatives to 515739-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.
489883-001 - HP 400-Watts 100-240V AC Redundant Hot-Swappable Power Supply with Power Factor Correction for StorageWorks
SKU: 489883-001
Price: $71.58
225011-001 - HP 400-Watts 100-240V AC Redundant Hot-Swappable Power Supply with Power Factor Correction for Proliant DL380 G2 G3
SKU: 225011-001
Price: $145.26
AA23530 - HP 1300-Watts Hot-Swappable Redundant Power Supply with Active Power Supply Correction for ProLaint DL580 ML570 G3 G4
SKU: AA23530
Price: $128.95
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
283697-001 - HP 400-Watts Redundant Hot-Swappable Power Supply for Proliant 1200 1600 2500
SKU: 283697-001
Price: $71.58
PS-3381-1C2 - HP 400-Watts 100-240VAC Redundant Hot Swappable Power Supply for StorageWorks MSA20
SKU: PS-3381-1C2
Price: $128.95
313299-001 - HP 400-Watts 100-240V AC Redundant Hot-Swappable Power Supply For ProLiant DL380 Gen2/Gen3
SKU: 313299-001
Price: $145.26
644672-001 - HP-400-Watts Redundant Hot-Swappable Power Supply for Proliant DL320 G6
SKU: 644672-001
Price: $147.86
101920-001 - HP 450-Watts 100-240V AC Redundant Hot-Swappable Power Supply with Active Power Factor Correction for ProLiant DL580 G1
SKU: 101920-001
Price: $73.68
337867-005 - HP 1300-Watts Hot-Swappable Redundant AC Power Supply with Active Power Factor Correction for ProLaint DL580 ML570 G3 G4
SKU: 337867-005
Price: $104.59
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.