C9800-L-F-K9 - Cisco Catalyst 9800-L Series WLAN Controller
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C9800-L-F-K9 Overview
C9800-L-F-K9: fiber-uplink and optic qualification
C9800-L-F-K9 is the fiber-uplink member of the Catalyst 9800-L family. Cisco identifies four 2.5/1-Gigabit ports and two 10/1-Gigabit optical uplinks. The F PID must remain visible through quotation and receiving because its optic, fiber-plant and distance decisions differ from the copper C model.
Optic and fiber-path qualification
Choose each supported SFP or SFP+ against wavelength, reach, connector, fiber type and the peer interface. Record optic PID and serial, transmit and receive levels, patch-panel path, polarity and negotiated speed. An unsupported or mismatched module can leave the port down even when the controller itself is healthy.
Redundancy validation
Map the two optical uplinks to independent failure domains where the design requires resilience. Preserve spanning, routing or port-channel configuration and test the loss of each path. Store optical diagnostics before and after failover so degradation is not mistaken for an IOS XE or wireless-control fault.
Scale and software evidence
The published base platform supports 250 access points, 5,000 clients and 5 Gbps; the Performance license raises those limits to 500 access points, 10,000 clients and 10 Gbps. Retain Smart Account ownership, license state, IOS XE release and compatibility evidence with the controller backup.
C9800-L-F-K9 receiving record
Verify the full F PID, 4.01-lb published chassis weight, 110W adapter, rack parts, four access-side links and both populated optical ports. Cisco publishes 84.5W maximum consumption assuming two 2.5W SFPs and the stated USB load; use the real optics when completing the power and thermal review.
Official evidence: Cisco Catalyst 9800-L data sheet; Cisco 9800-L deployment guide; and Cisco IOS XE controller release notes.
Related platform comparison
C9800-L-C-K9 copper-uplink controller uses the other uplink medium; compare the distribution design before substitution.
C9800-L-F-K9 Specification
| Exact model / SKU | C9800-L-F-K9 |
| Exact PID | C9800-L-F-K9 |
| Uplink identity | Fiber-uplink Catalyst 9800-L controller |
| Fixed interfaces | 4x 2.5/1-Gigabit plus 2x 10/1-Gigabit SFP or SFP+ |
| Base scale | 250 access points, 5,000 clients, 5 Gbps |
| Performance-license scale | 500 access points, 10,000 clients, 10 Gbps |
| Power | 110W external adapter; 84.5W published maximum with two 2.5W SFPs and 4.5W USB load |
| Form factor | 1RU half-width chassis; 4.01 lb published weight |
| Source match | C9800-L-F-K9 optical uplinks, SFP qualification, capacity tiers, power and chassis |
| Official manufacturer reference | Cisco Catalyst 9800-L official data sheet |
C9800-L-F-K9 Warranty
 | Product Quotation |  | Condition and Packaging |
 | Technical Support Enquiry |  | Returns and Replacement |
 | Shipping Arrangements |  | Warranty Terms |
C9800-L-F-K9 FAQ
What is C9800-L-F-K9?
C9800-L-F-K9 - Cisco Catalyst 9800-L Series WLAN Controller is a CISCO Wireless Controllers product supplied by YYST Global for enterprise IT procurement and infrastructure projects.
What interfaces and ports does C9800-L-F-K9 provide?
For C9800-L-F-K9, the manufacturer specification lists fixed interfaces as 4x 2.5/1-Gigabit plus 2x 10/1-Gigabit SFP or SFP+.
What are the power requirements for C9800-L-F-K9?
For C9800-L-F-K9, the manufacturer specification lists power as 110W external adapter; 84.5W published maximum with two 2.5W SFPs and 4.5W USB load.
Is C9800-L-F-K9 available from YYST Global?
Contact YYST Global to confirm availability for C9800-L-F-K9, the required quantity, exact configuration, delivery destination and current lead time before ordering. A product listing does not confirm current inventory.
What is the price of C9800-L-F-K9?
The current reference price for C9800-L-F-K9 is US$ 7,222.00. Final pricing can change based on stock, quantity, configuration and delivery destination.
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