Replacement for CISCO3640-RF: Drop-In Alternatives We Stock
Looking for a replacement for the CISCO3640-RF (CISCO3640-RF - Cisco 3640 Router 4 x Network Module 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 CISCO3640-RF
| SKU | CISCO3640-RF |
|---|---|
| Product | CISCO3640-RF - Cisco 3640 Router 4 x Network Module Router |
| Stock status | In Stock |
| Detail page | View CISCO3640-RF › |
Drop-in replacements for CISCO3640-RF
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.
MEM-7301-FLD128M - Cisco 128MB CompactFlash (CF) Memory Card for 7301 Router Series Router
SKU: MEM-7301-FLD128M
Price: $116.33
MEM-7301-FLD256M - Cisco 256MB CompactFlash (CF) Memory Card for 7301 Router Series Router
SKU: MEM-7301-FLD256M
Price: $116.33
MEM-7301-FLD64M - Cisco 64MB CompactFlash (CF) Memory Card for 7301 Router Series Router
SKU: MEM-7301-FLD64M
Price: $116.33
Cisco CISCO1760-V3PN/K9 1760 Router 1 x 10/100Base-TX LAN 2 x VIC/WIC, 2 x VIC, 1 x Internal Expansion Router
SKU: CISCO1760-V3PN-K9
Price: $701.47
ESR10005-PWR-DC - Cisco 48V DC Power Entry Module for Cisco 10005 Internet Router Chassis
SKU: ESR10005-PWR-DC
Price: $743.11
NME-WAE-502-K9 - Cisco Wide Area Application Services (WAAS) 1 x 10/100/1000Base-T Network Module for 2800 3800 Series Router
SKU: NME-WAE-502-K9
Price: $157.42
MEM3745-64CF - Cisco 64MB CompactFlash (CF) Memory Card for Cisco 3745 Router
SKU: MEM3745-64CF
Price: $116.33
MEM3745-64U128CF - Cisco 64MB CompactFlash (CF) Memory Card for Cisco 3745 Router
SKU: MEM3745-64U128CF
Price: $116.33
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.