Replacement for 661128-L21: Drop-In Alternatives We Stock
Looking for a replacement for the 661128-L21 (661128-L21 - HP 1.90GHz 7.20GT/s QPI 15MB L3 Cache Socket LGA1356 Intel Xeon E5-2420 6-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 661128-L21
| SKU | 661128-L21 |
|---|---|
| Product | 661128-L21 - HP 1.90GHz 7.20GT/s QPI 15MB L3 Cache Socket LGA1356 Intel Xeon E5-2420 6-Core Processor |
| Current price | $105.26 |
| Stock status | In Stock |
| Detail page | View 661128-L21 › |
Drop-in replacements for 661128-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.
661128-B21 - HP 1.90GHz 7.20GT/s QPI 15MB L3 Cache Socket LGA1356 Intel Xeon E5-2420 6-Core Processor for ProLiant DL380e Gen8 Server
SKU: 661128-B21
Price: $263.16
660664-L21 - HP 1.90GHz 7.20GT/s QPI 15MB L3 Cache Socket LGA1356 Intel Xeon E5-2420 6-Core Processor
SKU: 660664-L21
Price: $73.68
728427-B21 - HP 1.90GHz 7.20GT/s QPI 15MB L3 Cache Socket LGA1356 Intel Xeon E5-2420 6-Core Processor for ProLiant SL4540 Gen8 Server
SKU: 728427-B21
Price: $80.09
741255-B21 - HP 1.90GHz 7.20GT/s QPI 15MB L3 Cache Socket LGA1356 Intel Xeon E5-2420 6-Core Processor for ProLiant ML350e Gen8 Server
SKU: 741255-B21
Price: $80.09
667376RB21 - HP 1.90GHz 7.20GT/s QPI 15MB L3 Cache Socket LGA1356 Intel Xeon E5-2420 6-Core Processor
SKU: 667376RB21
Price: $100.25
665868RB21 - HP 1.90GHz 7.20GT/s QPI 15MB L3 Cache Socket LGA1356 Intel Xeon E5-2420 6-Core Processor
SKU: 665868RB21
Price: $100.25
661128RB21 - HP 1.90GHz 7.20GT/s QPI 15MB L3 Cache Socket LGA1356 Intel Xeon E5-2420 6-Core Processor
SKU: 661128RB21
Price: $100.25
660664RB21 - HP 1.90GHz 7.20GT/s QPI 15MB L3 Cache Socket LGA1356 Intel Xeon E5-2420 6-Core Processor
SKU: 660664RB21
Price: $100.25
660660RB21 - HP 1.90GHz 7.20GT/s QPI 15MB L3 Cache Socket LGA1356 Intel Xeon E5-2420 6-Core Processor
SKU: 660660RB21
Price: $100.25
665868-L21 - HP 1.90GHz 7.20GT/s QPI 15MB L3 Cache Socket LGA1356 Intel Xeon E5-2420 6-Core Processor
SKU: 665868-L21
Price: $104.13
728427-L21 - HP 1.90GHz 7.20GT/s QPI 15MB L3 Cache Socket LGA1356 Intel Xeon E5-2420 6-Core Processor
SKU: 728427-L21
Price: $104.13
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.