Replacement for 728957-S21: Drop-In Alternatives We Stock
Looking for a replacement for the 728957-S21 (728957-S21 - HP 2.50GHz 8.0GT/s QPI 37.5MB L3 Cache Socket FCLGA2011 Intel Xeon E7-4880 V2 15-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 728957-S21
| SKU | 728957-S21 |
|---|---|
| Product | 728957-S21 - HP 2.50GHz 8.0GT/s QPI 37.5MB L3 Cache Socket FCLGA2011 Intel Xeon E7-4880 V2 15-Core Processor |
| Current price | $449.39 |
| Stock status | In Stock |
| Detail page | View 728957-S21 › |
Drop-in replacements for 728957-S21
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.
728957-L21 - HP 2.50GHz 8.0GT/s QPI 37.5MB L3 Cache Socket FCLGA2011 Intel Xeon E7-4880 V2 15-Core Processor
SKU: 728957-L21
Price: $73.68
728957-B21 - HP 2.50GHz 8.0GT/s QPI 37.5MB L3 Cache Socket FCLGA2011 Intel Xeon E7-4880 V2 15-Core Processor
SKU: 728957-B21
Price: $205.26
734146-001 - HP 2.50GHz 8.0GT/s QPI 37.5MB L3 Cache Socket FCLGA2011 Intel Xeon E7-4880 V2 15-Core Processor
SKU: 734146-001
Price: $73.68
7WHPEG - Dell 2.50GHz 8.00GT/s QPI 37.5MB Cache Socket FCLGA2011 Intel Xeon E7-4880 v2 15 Core Processor
SKU: 7WHPEG
Price: $449.39
661124-B21-01 - HP Processor Intel Xeon Processor E5-2440 (15M Cache, 2.4 GHz, 7.20GT/s Intel QPI) Six-Core 2.40GHz Bus Speed 7.20GT/s 15 MB Cache
SKU: 661124-B21-01
Price: $802.54
762445-001 - HP 2.40GHz 8.00GT/s QPI 15MB L3 Cache Socket FCLGA2011 Intel Xeon E5-2620 v3 6 Core Processor
SKU: 762445-001
Price: $47.37
726995-B21 - HP 2.40GHz 8.00GT/s QPI 15MB L3 Cache Socket FCLGA2011 Intel Xeon E5-2620 v3 6 Core Processor
SKU: 726995-B21
Price: $47.37
818192-B21 - HP 3.50GHz 9.60GT/s QPI 15MB Smart Cache Socket FCLGA2011-3 Intel Xeon E5-2637 V4 Quad Core Processor Kit for DL360 G9
SKU: 818192-B21
Price: $47.37
755382-B21 - HP 2.40GHz 8.00GT/s QPI 15MB L3 Cache Socket FCLGA2011 Intel Xeon E5-2620 v3 6 Core Processor (Tray part)
SKU: 755382-B21
Price: $50.53
719051-B21 - HP 2.40GHz 8.00GT/s QPI 15MB L3 Cache Socket FCLGA2011 Intel Xeon E5-2620 v3 6 Core Processor
SKU: 719051-B21
Price: $54.74
791915-001 - HP 1.70GHz 6.4 GT/s QPI 25MB Cache Socket FCLGA2011 Intel Xeon E5-4610 v3 10 Core Processor
SKU: 791915-001
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.