Replacement for S28NUASK9B-12425: Drop-In Alternatives We Stock
Looking for a replacement for the S28NUASK9B-12425 (S28NUASK9B-12425 - Cisco IOS Advanced IP Services v.12.4(25) Upgrade License)? 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 S28NUASK9B-12425
| SKU | S28NUASK9B-12425 |
|---|---|
| Product | S28NUASK9B-12425 - Cisco IOS Advanced IP Services v.12.4(25) Upgrade License |
| Stock status | In Stock |
| Detail page | View S28NUASK9B-12425 › |
Drop-in replacements for S28NUASK9B-12425
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.
PWR-3900-POE - Cisco Power Supply with PoE Switch For 3925 / 3945 Integrated Services Router
SKU: PWR-3900-POE
Price: $238.13
DCJ5952-01P - Cisco 595-Watts AC Power Supply For 3925 / 3945 Integrated Services Router
SKU: DCJ5952-01P
Price: $461.84
Cisco PWR-3900-AC/2 400-Watts 100 / 240V Secondary AC Power Supply For 3925/3945 Integrated Services Router
SKU: PWR-3900-AC-2
Price: $856.43
DS-X9248-256K9 - Cisco 48 x Ports 8Gb/s Advanced Fibre Channel Switching Module for MDS 9000
SKU: DS-X9248-256K9
Price: $937.04
MEM2811-256U768D - Cisco 512MB DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM 2.5V Memory Module Upgrade
SKU: MEM2811-256U768D
Price: $137.68
PVDM4-32U256 - Cisco PVDM4 32-Channel to 256-Channel Voice Digital Signal Processor Upgrade
SKU: PVDM4-32U256
Price: $12,040.00
MEM2800-128U256CF-3 - Cisco 256MB CompactFlash (CF) Memory Card for Cisco 2800 Series
SKU: MEM2800-128U256CF-3
Price: $116.33
Cisco MEM2800-64U256CF=-DD 64MB CompactFlash (CF) Memory Card for Cisco 2800 Series
SKU: MEM2800-64U256CF--DD
Price: $116.33
MEM2800-128U256CF-O - Cisco 256MB CompactFlash (CF) Memory Card for Cisco 2800 Series
SKU: MEM2800-128U256CF-O
Price: $116.33
MEM-280064-256CF - Cisco 64MB CompactFlash (CF) Memory Card for Cisco 2800 Series
SKU: MEM-280064-256CF
Price: $116.33
MEM2821-256D - Cisco 256MB DDR DIMM Memory Module for Cisco 2821/2851 Routers
SKU: MEM2821-256D
Price: $133.76
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.