Replacement for 539815R-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 539815R-B21 (539815R-B21 - HP ProLiant Blade Entry-level Server Yes 2 x Opteron 8435 2.6GHz 4 Processor Support 8GB Standard/256GB Maximum RAM Serial Attached SCSI Yes Controller 10 Gigabit Ethernet, Fast Ethernet)? 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 539815R-B21
| SKU | 539815R-B21 |
|---|---|
| Product | 539815R-B21 - HP ProLiant Blade Entry-level Server Yes 2 x Opteron 8435 2.6GHz 4 Processor Support 8GB Standard/256GB Maximum RAM Serial Attached SCSI Yes Controller 10 Gigabit Ethernet, Fast Ethernet |
| Stock status | In Stock |
| Detail page | View 539815R-B21 › |
Drop-in replacements for 539815R-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.
539815-B21 - HP ProLiant Bl685c G6- 2x AMD Opteron 6-Core 8435/2.6GHz 8GB Ram Gigabit Ethernet Blade Server
SKU: 539815-B21
Price: $1,376.84
539451-001 - HP 2.6GHz 4800MHz FSB 6MB L3 Cache Socket F (1207) AMD Opteron 8435 6-Core Processor for ProLiant DL585 G6 Server
SKU: 539451-001
Price: $71.58
572373-L21 - HP 2.6GHz 4800MHz FSB 6MB L3 Cache Socket F (1207) AMD Opteron 8435 6-Core Processor for ProLiant DL585 G6 Server
SKU: 572373-L21
Price: $176.84
539816-L21 - HP 2.6GHz 4800MHz FSB 6MB L3 Cache Socket F (1207) AMD Opteron 8435 6-Core Processor for ProLiant DL585 G6 Server
SKU: 539816-L21
Price: $176.84
572373-B21 - HP 2.6GHz 4800MHz FSB 6MB L3 Cache Socket F (1207) AMD Opteron 8435 6-Core Processor for ProLiant DL585 G6 Server
SKU: 572373-B21
Price: $176.84
539816-B21 - HP 2.6GHz 4800MHz FSB 6MB L3 Cache Socket F (1207) AMD Opteron 8435 6-Core Processor for ProLiant DL585 G6 Server
SKU: 539816-B21
Price: $176.84
633404-421 - HP ProLiant 2U Rack Entry-level Server 2 x Xeon X5690 3.46GHz 2 Processor Support 12GB Standard Maximum RAM DVD-Writer Serial Attached SCSI Yes Controller Gigabit Ethernet
SKU: 633404-421
Price: $145.26
539660-001 - HP 2.6GHz 4800MHz FSB 6MB L3 Cache Socket F (1207) AMD Opteron 8435 6-Core Processor
SKU: 539660-001
Price: $71.58
658553-421 - HP ProLiant Ultra Micro Tower Entry-level Server 1 x Turion II Neo N40L 1.5GHz 2GB Standard/8GB Maximum RAM 250GB HDD Serial ATA Yes Controller Gigabit Ethernet
SKU: 658553-421
Price: $408.42
588963-B21 - HP ProLiant Blade Entry-level Server 1 x Xeon E7530 1.86GHz 2 Processor Support 8GB Standard
SKU: 588963-B21
Price: $3,213.25
636071-001 - HP ProLiant 2U Rack Entry-level Server 2 x Opteron 6180 SE 2.5GHz 2 Processor Support 16GB Standard
SKU: 636071-001
Price: $823.16
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.