Replacement for 857781-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 857781-B21 (857781-B21 - HP 2.40GHz 5.00GT/s QPI 30MB L3 Cache Socket LGA2011 Intel Xeon E5-2673 V3 12-Core Processor)? 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 857781-B21
| SKU | 857781-B21 |
|---|---|
| Product | 857781-B21 - HP 2.40GHz 5.00GT/s QPI 30MB L3 Cache Socket LGA2011 Intel Xeon E5-2673 V3 12-Core Processor |
| Current price | $3,469.83 |
| Stock status | In Stock |
| Detail page | View 857781-B21 › |
Drop-in replacements for 857781-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.
857781-L21 - HP 2.40GHz 5.00GT/s QPI 30MB L3 Cache Socket LGA2011 Intel Xeon E5-2673 V3 12-Core Processor
SKU: 857781-L21
Price: $3,469.83
789126-001 - HP 2.40GHz 5.00GT/s QPI 30MB L3 Cache Socket LGA2011 Intel Xeon E5-2673 v3 12-Core Processor
SKU: 789126-001
Price: $255.49
846231-001 - HP 2.40GHz 5.00GT/s QPI 30MB L3 Cache Socket FCLGA2011-3 Intel Xeon E5-2673 v3 12-Core Processor
SKU: 846231-001
Price: $255.49
827895-B21 - HP 2.40GHz 5.00GT/s QPI 30MB L3 Cache Socket LGA2011 Intel Xeon E5-2673 V3 12-Core Processor
SKU: 827895-B21
Price: $468.11
862914-B21 - HP 2.40GHz 5.00GT/s QPI 30MB L3 Cache Socket LGA2011 Intel Xeon E5-2673 V3 12-Core Processor
SKU: 862914-B21
Price: $3,469.83
827894-L21 - HP 2.4GHz 5GT/s DMI 30MB L3 Cache Socket LGA2011-3 Intel Xeon E5-2673 v3 12-Core Processor for ProLiant DL360 Gen9 Server
SKU: 827894-L21
Price: $437.41
827895-L21 - HP 2.4GHz 5GT/s DMI 30MB L3 Cache Socket LGA2011-3 Intel Xeon E5-2673 v3 12-Core Processor for ProLiant DL380 Gen9 Server
SKU: 827895-L21
Price: $437.41
869005-001 - HP 2.3GHz 9.6GT/s QPI Socket FCLGA 2011-3 Intel Xeon E5-2673 v4 20 Core Processor
SKU: 869005-001
Price: $6,050.61
817943-B21 - HP 2.20GHz 9.60GT/s QPI 30MB L3 Cache Socket LGA2011-3 Intel Xeon E5-2650-V4 12-Cores Server Processor
SKU: 817943-B21
Price: $71.58
791912-001 - HP 2.10GHz 9.60GT/s QPI 30MB Cache Socket FCLGA2011 Intel Xeon E5-4650v3 12 Core Processor
SKU: 791912-001
Price: $71.58
835604-001 - HP 2.20GHz 9.60GT/s QPI 30MB L3 Cache Socket LGA2011-3 Intel Xeon E5-2650-v4 12-Core Processor
SKU: 835604-001
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.