Replacement for AR-4.0-ADD-CPU: Drop-In Alternatives We Stock
Looking for a replacement for the AR-4.0-ADD-CPU (AR-4.0-ADD-CPU - Cisco Access Registrar v.4.0 License 1 Additional Processor PC)? 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 AR-4.0-ADD-CPU
| SKU | AR-4.0-ADD-CPU |
|---|---|
| Product | AR-4.0-ADD-CPU - Cisco Access Registrar v.4.0 License 1 Additional Processor PC |
| Stock status | In Stock |
| Detail page | View AR-4.0-ADD-CPU › |
Drop-in replacements for AR-4.0-ADD-CPU
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.
UCSC-F-FIO-2600MP - Cisco Fusion ioMemory PX600 2600GB Multi-Level Cell (MLC) PCI Express 2.0 x8 Flash Accelerator HH-HL Add-in Card Solid State Drive
SKU: UCSC-F-FIO-2600MP
Price: $3,300.78
Cisco 15216-FLD-4-33.4 ONS 15216 4-Channel Optical Add / Drop Multiplexer
SKU: 15216-FLD-4-33.4
Price: $4,262.12
UCSC-F-FIO-365M - Cisco Fusion ioMemory ioDrive2 365GB Multi-Level Cell (MLC) PCI Express 2.0 x4 Flash Accelerator HH-HL Add-in Card Solid State Drive
SKU: UCSC-F-FIO-365M
Price: $5,234.53
Cisco 40-Channel Reconfigurable Optical Add/Drop Multiplexing Module
SKU: 15454-40-MUX-C
Price: $18,882.70
AIR-CT5508-12-K9 - Cisco Aironet 5508 Wireless Controller for up to 12 Cisco Access Points
SKU: AIR-CT5508-12-K9
Price: $435.39
AIR-CT2504-50-K9 - Cisco WLAN Controller for up to 50 Cisco Access Point
SKU: AIR-CT2504-50-K9
Price: $2,794.25
Cisco 2504 Wireless Controller with 5x Cisco Aironet 700 Series Access Point
SKU: AIRCT2504-702I-A5
Price: $6,019.75
UCS-CPU-E5-2430 - Cisco 2.20GHz 7.2GT/s QPI 15MB SmartCache Socket FCLGA1356 Intel Xeon E5-2430 6-Core Processor
SKU: UCS-CPU-E5-2430
Price: $95.00
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-E5645 - Cisco 2.40GHz 5.86GT/s QPI 12MB L3 Cache Socket FCLGA1366 Intel Xeon E5645 6-Core Processor
SKU: UCS-CPU-E5645
Price: $100.21
UCS-CPU-E5-2640-RF - Cisco 2.50GHz 7.2GT/s QPI 15MB SmartCache Socket FCLGA2011 Intel Xeon E5-2640 6-Core Processor
SKU: UCS-CPU-E5-2640-RF
Price: $100.25
Cisco UCS-CPU-E5-2430LC 2.0GHz 7.2GT/s QPI 15MB SmartCache Socket FCLGA1356 Intel Xeon E5-2430L 6-Core Processor
SKU: UCS-CPU-E5-2430LC
Price: $115.51
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.