Replacement for CISCO804: Drop-In Alternatives We Stock
Looking for a replacement for the CISCO804 (CISCO804 - Cisco 804 Router 4 x 10Base-T LAN, 3 x WAN 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 CISCO804
| SKU | CISCO804 |
|---|---|
| Product | CISCO804 - Cisco 804 Router 4 x 10Base-T LAN, 3 x WAN Router |
| Stock status | In Stock |
| Detail page | View CISCO804 › |
Drop-in replacements for CISCO804
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.
CISCO878-SEC-K9 - Cisco 878 G.SHDSL 4 x 10/100Base-TX LAN + 1 x WAN + 1 x ISDN BRI (S/T) WAN Integrated Services Router
SKU: CISCO878-SEC-K9
Price: $250.53
WIC-1ADSL-DG - Cisco 1-port ADSLoPOTS WAN Interface Card - 1 x ADSLoPOTS x WAN - WAN Interface Card (WIC)
SKU: WIC-1ADSL-DG
Price: $188.13
ISR1100-6G - Cisco ISR1100 Router 4 GE LAN/WAN Ports and 2 SFP ports 4GB RAM
SKU: ISR1100-6G
Price: $6,579.50
Cisco MEM800-4U12F 8MB mini-Flash Memory Card for Router 801/802/803/804/805
SKU: MEM800-4U12F
Price: $116.33
MEM800-8F - Cisco 8MB mini-Flash Memory Card for Router 801 802 803 804 805
SKU: MEM800-8F
Price: $116.33
Cisco MEM800-8U12F 8MB mini-Flash Memory Card for Router 801 802 803 804
SKU: MEM800-8U12F
Price: $116.33
Cisco MEM805-4U12F 8MB mini-Flash Memory Card for Router 801 802 803 804
SKU: MEM805-4U12F
Price: $116.33
14X10GBE-WL-XFP - Cisco 14-Port 10GbE LAN / WAN-PHY Interface Module for CRS-3
SKU: 14X10GBE-WL-XFP
Price: $5,728.92
4-10GBE-WL-XFP-RF - Cisco CRS-1 Series 4x10GbE WAN/LAN XFP InterfaceMod
SKU: 4-10GBE-WL-XFP-RF
Price: $11,561.26
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
PWR-800-WW1 - Cisco 110 / 220V Power Adapter for 801 / 802 / 803 / 804 / 806 Series Routers
SKU: PWR-800-WW1
Price: $82.42
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.