Replacement for 816651-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 816651-B21 (816651-B21 - HP 2.10GHz 8GT/s QPI 40MB Cache Socket FCLGA2011 Intel Xeon E7-4850 V4 16-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 816651-B21
| SKU | 816651-B21 |
|---|---|
| Product | 816651-B21 - HP 2.10GHz 8GT/s QPI 40MB Cache Socket FCLGA2011 Intel Xeon E7-4850 V4 16-Core Processor |
| Current price | $6,317.92 |
| Stock status | In Stock |
| Detail page | View 816651-B21 › |
Drop-in replacements for 816651-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.
845013-001 - HP 2.10GHz 8GT/s QPI 40MB L3 Cache Socket FCLGA2011 Intel Xeon E7-4850 v4 16-Core Processor
SKU: 845013-001
Price: $5,589.43
834486-L21 - HP 2.10GHz 8GT/s QPI 40MB Cache Socket FCLGA2011 Intel Xeon E7-4850 V4 16-Core Processor
SKU: 834486-L21
Price: $5,743.54
834486-B21 - HP 2.10GHz 8GT/s QPI 40MB Cache Socket FCLGA2011 Intel Xeon E7-4850 V4 16-Core Processor
SKU: 834486-B21
Price: $6,317.92
858197-001 - HP 2.1 GHz 8GT/s QPI 40MB Cache Socket FCLGA2011 Intel Xeon E7-4850 v4 16 Core Processor
SKU: 858197-001
Price: $8,735.58
643770-B21 - HP 2GHz 6.40GT/s QPI 24MB L3 Cache Socket LGA1567 Intel Xeon E7-4850 10-Core Processor for ProLiant BL680c G7 Server
SKU: 643770-B21
Price: $160.00
653052-001 - HP 2GHz 6.40GT/s QPI 24MB L3 Cache Socket LGA1567 Intel Xeon E7-4850 10-Core Processor for ProLiant G7 Servers
SKU: 653052-001
Price: $170.53
643071-B21 - HP 2GHz 6.40GT/s QPI 24MB L3 Cache Socket LGA1567 Intel Xeon E7-4850 10-Core Processor for ProLiant DL580 G7 Server
SKU: 643071-B21
Price: $210.25
643071-L21 - HP 2GHz 6.40GT/s QPI 24MB L3 Cache Socket LGA1567 Intel Xeon E7-4850 10-Core Processor Kit (2-Processors) for ProLiant DL580 G7 Server
SKU: 643071-L21
Price: $215.79
643770-L21 - HP 2GHz 6.40GT/s QPI 24MB L3 Cache Socket LGA1567 Intel Xeon E7-4850 10-Core Processor Kit (2-Processors) for ProLiant BL680c G7 Server
SKU: 643770-L21
Price: $215.79
841035-001 - HP 2.60GHz 9.60GT/s QPI 40MB L3 Cache Socket LGA2011-3 Intel Xeon E5-2697A-v4 16-Core Processor
SKU: 841035-001
Price: $71.58
853940-B21 - HP 2.10GHz 9.6GT/s QPI 40MB L3 Cache Socket FCLGA2011 Intel Xeon E5-2683 V4 16-Core Processor
SKU: 853940-B21
Price: $82.11
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.