Replacement for WS-X4640-CSFP-E: Drop-In Alternatives We Stock
Looking for a replacement for the WS-X4640-CSFP-E (WS-X4640-CSFP-E - Cisco Catalyst 4500E Series 40 SFP/80 C-SFP Port 1000Base-X 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 WS-X4640-CSFP-E
| SKU | WS-X4640-CSFP-E |
|---|---|
| Product | WS-X4640-CSFP-E - Cisco Catalyst 4500E Series 40 SFP/80 C-SFP Port 1000Base-X Module |
| Current price | $1,896.89 |
| Stock status | In Stock |
| Detail page | View WS-X4640-CSFP-E › |
Drop-in replacements for WS-X4640-CSFP-E
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.
2-409-774-12 - Cisco 2800-Watts 200-240V Power Supply For Catalyst 4500 Series Switch
SKU: 2-409-774-12
Price: $121.30
DWDM-SFP-4056 - Cisco 1Gbps 1000Base-DWDM Single-mode Fiber 80km 1540.56nm Duplex LC Connector SFP Transceiver Module
SKU: DWDM-SFP-4056
Price: $1,147.54
PWR-C45-2800ACV-2 - Cisco 2800-Watts 200-240V Power Supply for Catalyst 4503-E / 4506-E / 4507R-E / 4510R-E / 4507R+E / 4510R+E
SKU: PWR-C45-2800ACV-2
Price: $127.83
C9800-AC-750W-R - Cisco 750-Watt AC Power Supply for Catalyst 9800-40
SKU: C9800-AC-750W-R
Price: $1,255.58
DWDM-SFP10G-40.56 - Cisco Single-mode 10Gbps 10GBase-DWDM Fiber 80km 1540.56nm Duplex LC Connector SFP+ Transceiver Module
SKU: DWDM-SFP10G-40.56
Price: $2,785.50
10-2503-01 - Cisco 4Gbps 4GBase-DWDM Fibre Channel Single-mode Fiber 80km 1540.56nm LC Connector SFP Transceiver Module
SKU: 10-2503-01
Price: $4,234.61
10-2495-01 - Cisco 4Gbps 4GBase-DWDM Fibre Channel Single-mode Fiber 80km 1537.40nm LC Connector SFP Transceiver Module
SKU: 10-2495-01
Price: $4,234.61
ME34X-PWR-AC - Cisco 80-Watts 100-240V Power Supply For ME 3400E Series Ethernet Access Switch
SKU: ME34X-PWR-AC
Price: $571.68
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.