Replacement for CM4.1-U-K9-X345: Drop-In Alternatives We Stock
Looking for a replacement for the CM4.1-U-K9-X345 (Cisco CM4.1-U-K9-X345 CallManager v.4.1 Version Upgrade Licence 1 Processor(s), 1000 User(s) Standard Version Upgrade Licence US English)? 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 CM4.1-U-K9-X345
| SKU | CM4.1-U-K9-X345 |
|---|---|
| Product | Cisco CM4.1-U-K9-X345 CallManager v.4.1 Version Upgrade Licence 1 Processor(s), 1000 User(s) Standard Version Upgrade Licence US English |
| Stock status | In Stock |
| Detail page | View CM4.1-U-K9-X345 › |
Drop-in replacements for CM4.1-U-K9-X345
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.
AIR-PWR-1000 - Cisco 1000 48V DC External Power Supply For Aironet 1000
SKU: AIR-PWR-1000
Price: $112.16
IE-1000-4T1T-LM - Cisco Industrial Ethernet IE-1000-4T1T 4 x Ports 10/100Base-TX + 2 x SFP Layer 2 Managed Fast Ethernet Switch
SKU: IE-1000-4T1T-LM
Price: $1,046.86
IE-1000-8P2S-LM - Cisco Industrial 1000-8P2S POE+ 8 x Ports 10/100Base-TX + 2 x SFP Layer 2 Managed Fast Ethernet Switch
SKU: IE-1000-8P2S-LM
Price: $4,180.12
N55-D160L3-V2 - Cisco Nexus 5548 Layer 3 Daughter Card Version 2 Expansion Module
SKU: N55-D160L3-V2
Price: $1,009.95
N55-M160L3 - Cisco Nexus 5000 160 Gbps Layer 3 Version 2 Expansion Module
SKU: N55-M160L3
Price: $2,510.71
N55-M160L3-V2 - Cisco Nexus 5000 160 Gbps Layer 3 Version 2 Expansion Module
SKU: N55-M160L3-V2
Price: $2,908.61
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.