Replacement for UCS-CPU-E5-2643-RF: Drop-In Alternatives We Stock
Looking for a replacement for the UCS-CPU-E5-2643-RF (UCS-CPU-E5-2643-RF - Cisco 3.3GHz 8GT/s QPI 10MB SmartCache Socket FCLGA2011 Intel Xeon E5-2643 4-Core Processor)? Pro Disk Network ships Cisco 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 UCS-CPU-E5-2643-RF
| SKU | UCS-CPU-E5-2643-RF |
|---|---|
| Product | UCS-CPU-E5-2643-RF - Cisco 3.3GHz 8GT/s QPI 10MB SmartCache Socket FCLGA2011 Intel Xeon E5-2643 4-Core Processor |
| Current price | $434.74 |
| Stock status | In Stock |
| Detail page | View UCS-CPU-E5-2643-RF › |
Drop-in replacements for UCS-CPU-E5-2643-RF
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.
UCS-CPU-E5-2643 - Cisco 3.3GHz 8GT/s QPI 10MB SmartCache Socket FCLGA2011 Intel Xeon E5-2643 4-Core Processor
SKU: UCS-CPU-E5-2643
Price: $434.74
UCS-CPU-E52643B - Cisco 3.5GHz 8GT/s QPI 25MB SmartCache Socket FCLGA2011 Intel Xeon E5-2643 V2 6-Core Processor
SKU: UCS-CPU-E52643B
Price: $434.74
UCS-CPU-E52643D - Cisco 3.4GHz 9.6GT/s QPI 20MB SmartCache Socket FCLGA2011-3 Intel Xeon E5-2643 V3 6-Core Processor
SKU: UCS-CPU-E52643D
Price: $471.58
UCS-CPU-E5-2407 - Cisco 2.20GHz 6.4GT/s QPI 10MB SmartCache Socket FCLGA1356 Intel Xeon E5-2407 4-Core Processor
SKU: UCS-CPU-E5-2407
Price: $98.33
UCS-CPU-E52407BC - Cisco 2.40GHz 6.40GT/s QPI 10MB L3 SmartCache Socket FCLGA1356 Intel Xeon E5-2407 v2 Quad-Core Processor
SKU: UCS-CPU-E52407BC
Price: $148.89
UCS-CPU-E5-2609 - Cisco 2.4GHz 6.4GT/s QPI 10MB SmartCache Socket FCLGA2011 Intel Xeon E5-2609 4-Core Processor
SKU: UCS-CPU-E5-2609
Price: $294.74
UCS-CPU-E5-2609-RF - Cisco 2.4GHz 6.4GT/s QPI 10MB SmartCache Socket FCLGA2011 Intel Xeon E5-2609 4-Core Processor
SKU: UCS-CPU-E5-2609-RF
Price: $294.74
Cisco UCS-CPU-E5-2609C 2.4GHz 6.4GT/s QPI 10MB SmartCache Socket FCLGA2011 Intel Xeon E5-2609 4-Core Processor
SKU: UCS-CPU-E5-2609C
Price: $294.74
UCS-CPU-E52407B - Cisco 2.40GHz 6.40GT/s QPI 10MB SmartCache Socket FCLGA1356 Intel Xeon E5-2407 v2 Quad Core Processor
SKU: UCS-CPU-E52407B
Price: $364.70
UCS-CPU-E52407C - Cisco 2.20GHz 6.40GT/s QPI 10MB SmartCache Socket FCLGA1356 Intel Xeon E5-2407 Quad Core Processor
SKU: UCS-CPU-E52407C
Price: $364.70
UCS-CPU-E5-2403 - Cisco 1.80GHz 6.4GT/s QPI 10MB SmartCache Socket FCLGA1356 Intel Xeon E5-2403 4-Core Processor
SKU: UCS-CPU-E5-2403
Price: $464.57
Cisco UCS-CPU-E5-2403C 1.80GHz 6.4GT/s QPI 10MB SmartCache Socket FCLGA1356 Intel Xeon E5-2403 4-Core Processor
SKU: UCS-CPU-E5-2403C
Price: $464.57
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.