Replacement for CS-MARS-25-K9: Drop-In Alternatives We Stock
Looking for a replacement for the CS-MARS-25-K9 (CS-MARS-25-K9 - Cisco MARS-25 Security Management System 2 x 10/100/1000Base-T LAN)? 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 CS-MARS-25-K9
| SKU | CS-MARS-25-K9 |
|---|---|
| Product | CS-MARS-25-K9 - Cisco MARS-25 Security Management System 2 x 10/100/1000Base-T LAN |
| Stock status | In Stock |
| Detail page | View CS-MARS-25-K9 › |
Drop-in replacements for CS-MARS-25-K9
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.
ASA5525-K9 - Cisco 8-Port 120/230V 1000Base-T Gigabit Ethernet Firewall Edition Security Appliance Rack-Mountable
SKU: ASA5525-K9
Price: $15,924.63
MT4LSDT1632UDG-8F1 - Micron / Cisco 64MB 125MHz non-ECC Unbuffered CL3 100-Pin DIMM Memory Module
SKU: MT4LSDT1632UDG-8F1
Price: $182.37
Cisco MEM-I/O-FLC20M 20MB Flash Memory Card for 7200- NPE 100 150 175 200 225 300
SKU: MEM-I-O-FLC20M
Price: $218.30
MS225-24-HW - Cisco Meraki MS225-24 RJ-45 24 x Ports 10/100/1000Base-T + 4 x SFP+ 2 x Stacking Ports Layer 2 Managed Gigabit Ethernet Stackable Access Switch
SKU: MS225-24-HW
Price: $246.95
MS225-24P-HW - Cisco Meraki MS225-24P PoE RJ-45 24 x Ports 10/100/1000Base-T + 4 x SFP+ 2 x Stacking Ports Layer 2 Managed Gigabit Ethernet Stackable Access Switch
SKU: MS225-24P-HW
Price: $377.68
700184-002 - Cisco 338-Watts 100-240VAC Power Supply for 2500 Series Router
SKU: 700184-002
Price: $461.84
S400A001L - Cisco 400-Watts AC 100-240 V Power Supply for ASA5512X ASA5515X ASA5525X
SKU: S400A001L
Price: $573.26
SG250-08-K9-NA - Cisco Small Business SG250-08 8 x Ports 10/100/1000Base-T Layer 2 Managed Gigabit Ethernet Switch
SKU: SG250-08-K9-NA
Price: $582.11
SG250-08-K9 - Cisco Small Business SG250-08 8 x Ports 10/100/1000Base-T Layer 2 Managed Gigabit Ethernet Switch
SKU: SG250-08-K9
Price: $582.11
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.