Cisco Catalyst 9400 Upgrade Guide
Maximize the performance and lifespan of your Catalyst 9400 (Catalyst-9400). Every upgrade option below is verified compatible.
1Upgrade Categories
13Options Available
Verified Specifications
| Processor Options | Up to 9 Tbps system bandwidth; 80-480 Gbps per slot by supervisor |
| Power Supply Options | 2100W AC, 3200W AC/DC; N+1 and N+N redundancy |
| Networking Options | 4/7/10-slot chassis; up to 384x 1G or mGig 10G, 168x 25G, 36x 100G |
| Specification Source | Cisco official documentation (verified 2026-07-02) |
Frequently Asked Questions
Upgrade Networking
Stepping up from 1GbE to 10GbE or 25GbE eliminates network bottlenecks for VM migration, iSCSI storage traffic, and backup windows. Most modern workloads benefit from at least 10GbE.
Cisco Catalyst 9400 Series C9410-RACK-19-KIT
Cisco Catalyst 9400 10-SLOT 19-INCH Rack Mount Kit
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Cisco Catalyst 9400 Series C9410-ACC-KIT
Cisco Catalyst 9400 10-SLOT Chassis Accessory Kit
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Cisco Catalyst 9400 Series C9410-SHELF-KIT
Cisco Catalyst 9400 10-SLOT Chassis Shelf Install Kit
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Cisco Catalyst 9400 Series C9404-RACK-19-KIT
Cisco Catalyst 9400 4-SLOT 19-INCH Rack Mount Kit
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Cisco Catalyst 9400 Series C9404-ACC-KIT
Cisco Catalyst 9400 4-SLOT Chassis Accessory Kit
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Cisco Catalyst 9400 Series C9407-RACK-19-KIT
Cisco Catalyst 9400 7-SLOT 19-INCH Rack Mount Kit
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More Catalyst 9400 Resources
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