CISCO C1-N9K-C9504-B3 Nexus 9000 Series Switches

C1-N9K-C9504-B3 Four-Fabric Bundle

C1-N9K-C9504-B3 is a Cisco ONE Nexus 9504 package with one supervisor, three power supplies, two system controllers, four fabric modules and three fan trays.

B3 is not B3-E

The B3 description states four fabric modules but does not append the FM-E identity carried by C1-N9K-C9504-B3-E. Verify the actual fabric-module PID from the BOM and labels; do not convert B3 into an FM-E bundle from the similar name.

Incomplete chassis positions

The four-slot 9504 supports up to six same-family fabric modules and two supervisors. This order lists four fabrics and one supervisor, so any N+1 design or control-plane redundancy must be validated and completed separately.

Port configuration remains separate

No line card or optic is stated in the bundle description. Record the planned cards, required fabric generation, power budget, airflow and NX-OS/ACI mode before purchase.

Other 9504 choices

Use only when four FM-E modules are required; lists six fabrics; is the bare four-slot chassis order.

Cisco ONE status

Cisco ended sale of the legacy Cisco ONE PID on March 1, 2021; vulnerability support ended February 29, 2024 and the last support date was February 28, 2026. Treat the C1 entitlement and any transfer rights as a separate acceptance item.

Evidence: Cisco-hosted exact B3 bundle list; Nexus 9504 component limits.