Replacement for CISCO3845-SRST-K9: Drop-In Alternatives We Stock
Looking for a replacement for the CISCO3845-SRST-K9 (Cisco CISCO3845-SRST/K9 3845 Integrated Services Router Voice Bundle 2 x 10/100/1000Base-T LAN 4 x NME, 4 x HWIC, 2 x AIM, 4 x PVDM, 1 x SFP (mini-GBIC) 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 CISCO3845-SRST-K9
| SKU | CISCO3845-SRST-K9 |
|---|---|
| Product | Cisco CISCO3845-SRST/K9 3845 Integrated Services Router Voice Bundle 2 x 10/100/1000Base-T LAN 4 x NME, 4 x HWIC, 2 x AIM, 4 x PVDM, 1 x SFP (mini-GBIC) Integrated Services Router |
| Stock status | In Stock |
| Detail page | View CISCO3845-SRST-K9 › |
Drop-in replacements for CISCO3845-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.
Cisco C2921-VSEC-CUBE/K9 2921 Voice Security and CUBE Bundle - router - voice / fax module - desktop
SKU: C2921-VSEC-CUBE-K9
Price: $3,498.53
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 PWR-3845-AC-IP Inline AC IP Power Supply For Cisco 3845 Routers Spare
SKU: PWR-3845-AC-IP
Price: $840.95
PWR-2921-51-POE - Cisco AC Power Supply with PoE Cisco 2921 / 2951 Integrated Services Router
SKU: PWR-2921-51-POE
Price: $683.88
PVDM3-16-RF - Cisco 16-Channel High-Density Packet Voice and Video Digital Signal Processor Module - voice DSP module
SKU: PVDM3-16-RF
Price: $361.16
PVDM3-32-RF - Cisco 32-Channel High-Density Packet Voice and Video Digital Signal Processor Module - voice DSP module
SKU: PVDM3-32-RF
Price: $1,541.21
PVDM3-64-RF - Cisco 64-Channel High-Density Packet Voice and Video Digital Signal Processor Module - voice DSP module
SKU: PVDM3-64-RF
Price: $2,081.04
PVDM3-256-RF - Cisco 256-Channel High-Density Packet Voice and Video Digital Signal Processor Module - voice DSP module
SKU: PVDM3-256-RF
Price: $5,704.58
PWR-3900-POE - Cisco Power Supply with PoE Switch For 3925 / 3945 Integrated Services Router
SKU: PWR-3900-POE
Price: $238.13
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.