Replacement for 435551-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 435551-B21 (435551-B21 - HP ProLiant BL20p G4 Intel Xeon E5320 4 Core 1.86GHz CPU Blade Server System)? 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 435551-B21
| SKU | 435551-B21 |
|---|---|
| Product | 435551-B21 - HP ProLiant BL20p G4 Intel Xeon E5320 4 Core 1.86GHz CPU Blade Server System |
| Current price | $784.21 |
| Stock status | In Stock |
| Detail page | View 435551-B21 › |
Drop-in replacements for 435551-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.
345021-B21 - HP ProLiant BL20P G2 Intel Xeon 3.20GHz 1GB DDR SDRAM CPU Server Blade Server System
SKU: 345021-B21
Price: $265.26
416653-B21 - HP ProLiant BL460c Intel Xeon 5110 Dual Core 1.6GHz CPU Blade Server System
SKU: 416653-B21
Price: $173.68
443751-B21 - HP ProLiant BL460c Intel Xeon L5320 Quad Core 1.86GHz CPU 2GB RAM Blade Server
SKU: 443751-B21
Price: $189.47
461605-B21 - HP ProLiant BL460c G1 Intel Xeon E5205 Dual-Core 1.86GHz CPU 1GB DDR2 SDRAM Blade Server
SKU: 461605-B21
Price: $194.74
459487-B21 - HP ProLiant BL460c G1 Intel Xeon E5405 4-Core 2.0GHz CPU 1GB DDR2 SDRAM Blade Server
SKU: 459487-B21
Price: $205.26
459486-B21 - HP ProLiant BL460c G1 Intel Xeon E5420 4-Core 2.5GHz CPU 2GB DDR2 SDRAM Blade Server
SKU: 459486-B21
Price: $205.26
459483-B21 - HP ProLiant BL460c G1 1x Intel Xeon E5450 4-Core 3.0 GHz CPU 2GB DDR2 SDRAM Blade Server
SKU: 459483-B21
Price: $208.42
459484-B21 - HP ProLiant BL460c G1 Intel Xeon E5440 4-Core 2.83GHz CPU 2GB DDR2 SDRAM Blade Server
SKU: 459484-B21
Price: $208.42
459485-B21 - HP ProLiant BL460c G1 Intel Xeon E5430 4-Core 2.66GHz CPU 2GB DDR2 SDRAM Blade Server
SKU: 459485-B21
Price: $212.63
404664-B21 - HP ProLiant BL460c x Intel Xeon Processor 5063 3.2GHz Dual Core CPU 2GB Blade Server
SKU: 404664-B21
Price: $229.47
727029-B21 - HP ProLiant BL460c G9 1x Intel Xeon E5-2650v3 10-Core 2.3GHz CPU Blade Server
SKU: 727029-B21
Price: $233.68
461273-001 - HP ProLiant BL460c Intel Xeon E5345 4-Core 2.33GHz CPU 4GB Ram Blade Server
SKU: 461273-001
Price: $240.00
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.