Replacement for C3850-NM-2-40G: Drop-In Alternatives We Stock
Looking for a replacement for the C3850-NM-2-40G (C3850-NM-2-40G - Cisco Catalyst 2 x Ports 40 Gigabit Ethernet Network Module)? 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 C3850-NM-2-40G
| SKU | C3850-NM-2-40G |
|---|---|
| Product | C3850-NM-2-40G - Cisco Catalyst 2 x Ports 40 Gigabit Ethernet Network Module |
| Current price | $380.11 |
| Stock status | In Stock |
| Detail page | View C3850-NM-2-40G › |
Drop-in replacements for C3850-NM-2-40G
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 Catalyst WS-X6904-40G-2T 6900 Series 4 x Ports 40 Gigabit Ethernet Module For Fiber Module Spare
SKU: WS-X6904-40G-2T
Price: $19,305.68
C9500-40X-A - Cisco Catalyst 9500-40X SFP+ 40 x Ports 40GBase-X Layer 3 Managed Gigabit Ethernet Network Switch
SKU: C9500-40X-A
Price: $4,962.57
MA-CBL-40G-1M - Cisco 1M Compatible 40G QSFP+ Direct Attach Copper Cable
SKU: MA-CBL-40G-1M
Price: $168.45
C9500-24X-A - Cisco Catalyst C9500-24X 24 x Ports QSP 40GBase-X Layer 3 Managed Gigabit Ethernet Switch
SKU: C9500-24X-A
Price: $3,461.00
C9500-24Y4C-A - Cisco Catalyst C9500-24Y4C 24 x Ports QSP 40GBase-X Layer 3 Managed Gigabit Ethernet Switch
SKU: C9500-24Y4C-A
Price: $4,753.00
C9400-LC-24XS - Cisco Catalyst 3850 Series 24 x Ports SFP+ 10GBase-T Layer 3 Managed 1U Rack-Mountable Gigabit Ethernet Line card Module
SKU: C9400-LC-24XS
Price: $7,661.50
C9400-LC-24S - Cisco Catalyst 3850 Series 24 x Ports SFP+ 10GBase-T Layer 3 Managed 1U Rack-Mountable Gigabit Ethernet Line card Module
SKU: C9400-LC-24S
Price: $8,893.08
C9500-12Q-A - Cisco Catalyst C9500-12Q 12 x Ports QSP 40GBase-X Layer 3 Managed Gigabit Ethernet Switch
SKU: C9500-12Q-A
Price: $14,967.00
C9500-12Q-E - Cisco Catalyst C9500-12Q 12 x Ports QSP 40GBase-X Layer 3 Managed Gigabit Ethernet Switch
SKU: C9500-12Q-E
Price: $15,000.00
IE-4000-8S4G-E - Cisco Industrial Ethernet 4000 RJ-45 8 x Ports 1000Base-X + 4 x SFP Layer 3 Managed Gigabit Ethernet Switch
SKU: IE-4000-8S4G-E
Price: $803.79
WS-X6408-GBIC - Cisco Catalyst 6000 8-Port 1000Base-X Gigabit Ethernet Network Module
SKU: WS-X6408-GBIC
Price: $245.62
WS-X4448-GB-RJ45 - Cisco Catalyst 4000 48-Port 48 x 10/100/1000Base-T + 1 x Expansion Slot Gigabit Ethernet Module
SKU: WS-X4448-GB-RJ45
Price: $120.92
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.