Replacement for 817957-L21: Drop-In Alternatives We Stock
Looking for a replacement for the 817957-L21 (817957-L21 - HP 3.00GHz 9.6GT/s QPI 30MB SmartCache Socket FCLGA2011-3 Intel Xeon E5-2687W V4 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 817957-L21
| SKU | 817957-L21 |
|---|---|
| Product | 817957-L21 - HP 3.00GHz 9.6GT/s QPI 30MB SmartCache Socket FCLGA2011-3 Intel Xeon E5-2687W V4 12-Core Processor |
| Current price | $4,856.70 |
| Stock status | In Stock |
| Detail page | View 817957-L21 › |
Drop-in replacements for 817957-L21
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.
817957-B21 - HP 3.00GHz 8GT/s QPI 30MB L3 Cache Socket FCLGA2011 Intel Xeon E5-2687W V4 12-Core Processor
SKU: 817957-B21
Price: $1,520.84
818188-L21 - HP 3.00GHz 9.6GT/s QPI 30MB SmartCache Socket FCLGA2011-3 Intel Xeon E5-2687W V4 12-Core Processor
SKU: 818188-L21
Price: $4,856.70
T9U40AA - HP 3.00GHz 9.6GT/s QPI 30MB SmartCache Socket FCLGA2011-3 Intel Xeon E5-2687W V4 12-Core Processor
SKU: T9U40AA
Price: $7,225.42
818188-B21 - HP 3.00GHz 8.00GT/s QPI 30MB L3 Cache Socket LGA2011-3 Intel Xeon E5-2687W v4 12 Cores Server Processor
SKU: 818188-B21
Price: $4,856.70
841034-001 - HP 3.00GHz 8GT/s QPI 30MB L3 Cache Socket FCLGA2011 Intel Xeon E5-2687W V4 12-Core Processor
SKU: 841034-001
Price: $6,267.59
762768-B21 - HP 3.10GHz 9.6GT/s QPI 25MB L3 Cache Socket FCLGA2011-3 Intel Xeon E5-2687W v3 10-Core Processor for ProLiant DL380 Gen9 Server
SKU: 762768-B21
Price: $73.68
J9Q06AA - HP 3.10GHz 9.6GT/s QPI 25MB L3 Cache Socket FCLGA2011-3 Intel Xeon E5-2687W v3 10-Core Processor
SKU: J9Q06AA
Price: $426.11
J9Q06UT - HP 3.10GHz 9.6GT/s QPI 25MB L3 Cache Socket FCLGA2011-3 Intel Xeon E5-2687W v3 10-Core Processor
SKU: J9Q06UT
Price: $426.11
D9Q49AA - HP 3.10GHz 8.00GT/s QPI 20MB L3 Cache Socket FCLGA2011 Intel Xeon E5-2687W 8 Core Processor
SKU: D9Q49AA
Price: $822.79
670536-001 - HP 3.10GHz 8.00GT/s QPI 20MB L3 Cache Socket FCLGA2011 Intel Xeon E5-2687W 8 Core Processor
SKU: 670536-001
Price: $945.46
745912-B21 - HP 3.10GHz 8.00GT/s QPI 20MB L3 Cache Socket FCLGA2011 Intel Xeon E5-2687W 8 Core Processor
SKU: 745912-B21
Price: $945.46
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.