Alternative to C891F-K9-RF: Better-Value Equivalents in Stock
Comparing the C891F-K9-RF (Cisco 891F - Router - ISDN/Mdm - 8-port switch - GigE) against alternatives? Pro Disk Network stocks 12 similar Cisco parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the C891F-K9-RF
| SKU | C891F-K9-RF |
|---|---|
| Product | Cisco 891F - Router - ISDN/Mdm - 8-port switch - GigE |
| Stock status | In Stock |
| Detail page | View C891F-K9-RF › |
Alternatives to C891F-K9-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.
NM-1CT1 - Cisco Channelized T1/ISDN-PRI Network Module 1 x Channelized T1/ISDN PRI WAN Network Module
SKU: NM-1CT1
Price: $150.71
Cisco - Expansion module - GigE - 4 ports - refurbished for Catalyst 3560X-24, 3560X-48, 3750X-12, 3750X-24, 3750X-48
SKU: C3KX-NM-1G-RF
Price: $257.38
Cisco - Expansion module - 10 GigE - refurbished for Catalyst 3850-24, 3850-48
SKU: C3850-NM-2-10G-RF
Price: $2,134.59
Cisco DWDM-SFP-4532 SFP (mini-GBIC) GigE Fiber Channel 2Gb/s Transceiver Module
SKU: DWDM-SFP-4532
Price: $8,393.00
Cisco 24-Port 1 Gigabit SFP Fiber Ethernet Module with DFC4 - Expansion module - GigE - refurbished
SKU: WS-X6824-SFP-2T-RF
Price: $13,610.09
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-1B-U-V2 - Cisco Sinlge Port ISDN BRI U High-Speed WAN Interface Card
SKU: WIC-1B-U-V2
Price: $99.58
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.