Replacement for CISCO2811-SRST-K9: Drop-In Alternatives We Stock
Looking for a replacement for the CISCO2811-SRST-K9 (Cisco CISCO2811-SRST/K9 2811 Router with Voice Bundle 2 x 10/100Base-TX LAN 2 x AIM, 4 x Expansion Slot(s), 1 x NME, 2 x PVDM Integrated Services 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 CISCO2811-SRST-K9
| SKU | CISCO2811-SRST-K9 |
|---|---|
| Product | Cisco CISCO2811-SRST/K9 2811 Router with Voice Bundle 2 x 10/100Base-TX LAN 2 x AIM, 4 x Expansion Slot(s), 1 x NME, 2 x PVDM Integrated Services Router |
| Stock status | In Stock |
| Detail page | View CISCO2811-SRST-K9 › |
Drop-in replacements for CISCO2811-SRST-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.
CAB-530MT - Cisco Compatible RS530 DTE Male 10.ft Cable for 2811 Series Router
SKU: CAB-530MT
Price: $97.14
CISCO2811 - Cisco 2811 9-Port 9 x 10/100Base-TX Auxiliary Console 120/230V AC Ethernet Integrated Services Router
SKU: CISCO2811
Price: $273.11
Cisco C1861-SRST-F/K9 1861 8-Port 8 x 10/100/ PoE Fast Ethernet Integrated Services Router
SKU: C1861-SRST-F-K9
Price: $326.14
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
RVS4000 - Cisco 230V 4-Port 10/100/1000Base-T Gigabit Ethernet Security Bundle Router
SKU: RVS4000
Price: $189.47
C881-K9 - Cisco 230V 4-Port 10/100/1000Base-T Gigabit Ethernet Security Bundle Router
SKU: C881-K9
Price: $1,489.01
Cisco CISCO2901-16TS/K9 230V 10/100Base-T Gigabit Ethernet Terminal Server Bundle Router
SKU: CISCO2901-16TS-K9
Price: $2,228.21
Cisco ISR4351-SEC/K9 ISR 4351 3-Port 10-Slot 10/100Base-T Gigabit Ethernet Security Bundle Router
SKU: ISR4351-SEC-K9
Price: $6,798.59
Cisco CISCO2911-V/K9 230V 10/100/1000Base-T Gigabit Ethernet Security Bundle Router
SKU: CISCO2911-V-K9
Price: $7,931.37
CISCO878-SEC-K9 - Cisco 878 G.SHDSL 4 x 10/100Base-TX LAN + 1 x WAN + 1 x ISDN BRI (S/T) WAN Integrated Services Router
SKU: CISCO878-SEC-K9
Price: $250.53
ISR1100-6G - Cisco ISR1100 Router 4 GE LAN/WAN Ports and 2 SFP ports 4GB RAM
SKU: ISR1100-6G
Price: $6,579.50
MC3810-APM-EM - Cisco Voice Interface Card E&M Analog Personality Module
SKU: MC3810-APM-EM
Price: $105.22
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.