Replacement for CISCO3945E-K9: Drop-In Alternatives We Stock
Looking for a replacement for the CISCO3945E-K9 (Cisco CISCO3945E/K9 3945 4-Port 13-Slots Gigabit Ethernet Integrated Service 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 CISCO3945E-K9
| SKU | CISCO3945E-K9 |
|---|---|
| Product | Cisco CISCO3945E/K9 3945 4-Port 13-Slots Gigabit Ethernet Integrated Service Router |
| Stock status | In Stock |
| Detail page | View CISCO3945E-K9 › |
Drop-in replacements for CISCO3945E-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.
N7K-M132XP-12 - Cisco Nexus 7000 Series 32 x Ports SFP+ 10Gbase-T Gigabit Ethernet Module
SKU: N7K-M132XP-12
Price: $203.87
DS-13SLT-FAB3 - Cisco 5500 1Gbps 10/100/1000Base-T 2 x Portss LC Connector Gigabit Ethernet Supervisor Module
SKU: DS-13SLT-FAB3
Price: $204.33
UCSB-VIC-M83-8P - Cisco 1380 10 Gigabit Ethernet Virtual Interface Card
SKU: UCSB-VIC-M83-8P
Price: $643.43
N7K-M132XP-12L - Cisco Nexus 7000 Series 32 x Ports SFP+ 10Gbase-T Gigabit Ethernet Module
SKU: N7K-M132XP-12L
Price: $1,915.79
AIR-LAP1310G-E-K9 - Cisco 802.11g LWAPP AP Integrated Antenna ETSI Configure
SKU: AIR-LAP1310G-E-K9
Price: $476.36
Cisco MEM-4400-8G 8GB DDR3-1333MHz DRAM DIMM Memory Upgrade For 4451-x 4451-x Integrated Services Router
SKU: MEM-4400-8G
Price: $2,219.37
HR521 - Dell / Cisco Catalyst 3130X 10GIgabit Ethernet Blade Switch for PowerEdge M1000E
SKU: HR521
Price: $149.47
0HR521 - Dell / Cisco Catalyst 3130X 10Gigabit Ethernet Blade Switch for PowerEdge M1000E
SKU: 0HR521
Price: $149.47
Cisco WS-X4013+10GE 10GE Ethernet Supervisor Engine II Switch Module
SKU: WS-X4013-10GE
Price: $391.46
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.