Replacement for 42-1GE: Drop-In Alternatives We Stock
Looking for a replacement for the 42-1GE (Cisco 42-1GE 42-Port Gigabit Ethernet Interface Module - expansion module - 42 ports)? 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 42-1GE
| SKU | 42-1GE |
|---|---|
| Product | Cisco 42-1GE 42-Port Gigabit Ethernet Interface Module - expansion module - 42 ports |
| Stock status | In Stock |
| Detail page | View 42-1GE › |
Drop-in replacements for 42-1GE
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 ISR4221-SEC/K9 ISR 4221 Gigabit Ethernet 1U Rack-Mountable Router
SKU: ISR4221-SEC-K9
Price: $5,338.07
AG642A - HP Cisco 9124E 24-Port Blade System C-Class Fabric Switch HP Cisco 9124E 24-Port Blade System C-Class Fabric Switch
SKU: AG642A
Price: $273.91
WS-X4424-GB-RJ45 - Cisco Catalyst 4500 24 x Ports 10/100/1000Base-T Layer 2 Managed Fast Ethernet Network Switch Module
SKU: WS-X4424-GB-RJ45
Price: $557.89
E10G42BTDA-CISCO - Cisco X520-da2 10GBe SFP+ Dual Port PCI-Express Adapter
SKU: E10G42BTDA-CISCO
Price: $259.37
15454-OC48E-42.94 - Cisco 15454 2.4Gb/s OC-48/STM-16 Multi-Mode 1 x Port SC Connector Fiber Module
SKU: 15454-OC48E-42.94
Price: $326.00
WS-X4248-RJ45V - Cisco Catalyst 4500 Series 48 x Ports 10/100Base-TX Layer 3 Managed Fast Ethernet Network Switch
SKU: WS-X4248-RJ45V
Price: $332.08
WS-X4248-FE-SFP - Cisco Catalyst 4500 Series 48 x Ports 10/100Base-TX Layer 3 Managed Fast Ethernet Network Switch
SKU: WS-X4248-FE-SFP
Price: $869.64
WS-X4248-FE-SFP-RF - Cisco Catalyst 4500 Series 48 x Ports 10/100Base-TX Layer 3 Managed Fast Ethernet Network Switch
SKU: WS-X4248-FE-SFP-RF
Price: $2,144.36
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.