Replacement for AS2509-RJ: Drop-In Alternatives We Stock
Looking for a replacement for the AS2509-RJ (AS2509-RJ - Cisco AS2509 Access Router 9 x Serial Access Router)? 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 AS2509-RJ
| SKU | AS2509-RJ |
|---|---|
| Product | AS2509-RJ - Cisco AS2509 Access Router 9 x Serial Access Router |
| Stock status | In Stock |
| Detail page | View AS2509-RJ › |
Drop-in replacements for AS2509-RJ
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.
Cisco HWIC-4T/E1 4-Port Serial High-Speed 4 x Synchronous /Asynchronous Serial WAN Interface Card
SKU: HWIC-4T-E1
Price: $326.14
Cisco 8-port Asynchronous/Synchronous Serial GRWIC for the Cisco 2010 Connected Grid Router
SKU: GRWIC-8A-S-232
Price: $1,540.00
CAB-SS-V35MT - Cisco 10.ft Male DTE To Smart Serial V.35 Cable Compatible for Router
SKU: CAB-SS-V35MT
Price: $192.08
C3251MARC-TP-RF - Cisco 3251 1 x 10Base-T/100Base-TX Mobile Access Router Card
SKU: C3251MARC-TP-RF
Price: $296.41
MEM-7301-FLD128M - Cisco 128MB CompactFlash (CF) Memory Card for 7301 Router Series Router
SKU: MEM-7301-FLD128M
Price: $116.33
MEM-7301-FLD256M - Cisco 256MB CompactFlash (CF) Memory Card for 7301 Router Series Router
SKU: MEM-7301-FLD256M
Price: $116.33
MEM-7301-FLD64M - Cisco 64MB CompactFlash (CF) Memory Card for 7301 Router Series Router
SKU: MEM-7301-FLD64M
Price: $116.33
Cisco CISCO1760-V3PN/K9 1760 Router 1 x 10/100Base-TX LAN 2 x VIC/WIC, 2 x VIC, 1 x Internal Expansion Router
SKU: CISCO1760-V3PN-K9
Price: $701.47
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
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.