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N9K-C9508-B2-R
Cisco N9K-C9508-B2-R N9500 R-Series 8-Slot Chassis Switch
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N9K-C9508-B2-R is an eight-slot, Layer 3 modular data center chassis bundle for NX-OS networks. The Cisco N9500 R-Series configuration uses separately selected line cards for data interfaces rather than fixed access ports or built-in uplinks. Compatible interface cards provide deep buffering for aggregation, core, gateway, or spine deployments. The included fabric supports compatible Ethernet line cards through 100G; N9K-C9508-B2-R2 instead uses R2 fabric for 400G line-card support. Interface selection therefore determines the usable port configuration, rather than the chassis bundle alone. This non-PoE design connects network infrastructure and fiber interfaces rather than supplying endpoint power, and its modular architecture requires the interface cards to be specified alongside the chassis.
N9K-C9508-B2-R price for new stock is is available on request. Get immediate quote. N9K-C9508-B2-R refurb price is $161,698.95.
Request bulk order quote for N9K-C9508-B2-R for additional pricing. Browse the full Cisco Nexus 9500 Switches series or explore all Cisco products.
Six N9K-C9508-FM-R fabric modules distribute inter-card traffic across a Clos architecture; losing a fabric module reduces available switching capacity while the remaining fabrics continue forwarding. N9K-C9508-B2-R includes one N9K-SUP-B and two N9K-SC-A modules, separating supervisor processing from chassis-management functions. Three power supplies provide a starting configuration whose redundancy must be sized against the installed interface cards and fabrics. The Nexus 9508 bundle uses three N9K-C9508-FAN fan trays with port-side-intake airflow, requiring a front-to-back ventilation path through the cabinet. Local serial and Ethernet connections provide management access, while NX-APIs and Cisco Data Center Network Manager support automation and centralized administration. The chassis occupies 13U, so reserve the corresponding rack allocation before equipment placement is finalized. An ACI software change alone cannot convert the included NX-OS-only fabric.
N9K-C9508-B2-R is available new sealed or certified refurbished; refurbished units are inspected and bench-tested for power-on, POST, clean boot, module bay recognition, PSU status, and fan status, with firmware verified and configuration wiped to factory default. ORM warranties are up to 3-year extended for new units and up to 1 year for certified refurbished units; 30-day returns apply to every condition, terms apply. Cisco's separate 1-year limited hardware warranty cannot extend beyond July 31, 2032. Submit the condition, component list, and enterprise or volume quantities on a PO; PO accepted, Net-30 for government, and RMA with advance replacement are available.
| Key Specs | Key Spec Values |
|---|---|
Operating System | NX-OS |
Port Configuration | 8 line-card slots; no fixed data ports |
Cooling | 3 N9K-C9508-FAN fan trays |
Lifecycle Status | End of sale July 31, 2027 |
When a consolidation project needs different fiber speeds in the same chassis, N9K-X96136YC-R provides 32 ports at 1/10/25G, 16 ports at 1/10G, and four ports at 40/100G. Specify the line-card quantities, active port speeds, and matching optics before issuing the purchase order.
When a sparing plan adds previously uncovered hardware to an installed estate, new Cisco service attachment ends July 30, 2028. Separate hardware availability from eligibility for a new service contract, and specify the coverage required for each ordered chassis before issuing the purchase order.
When a lab rack needs a chassis to reproduce an existing R-Series build, include N9K-C9500-RMK= in the mounting review rather than treating a chassis bundle as a complete installation package. Confirm the rack hardware, selected modules, and complete accessory quantities on the purchase order.
ACI spine operation
N9K-C9508-FM-R fabric modules operate in NX-OS mode only. The bundled R-Series fabric therefore cannot serve as an ACI spine merely by changing software.
Dual-supervisor redundancy as shipped
The bundle includes one N9K-SUP-B, so active-standby supervisor redundancy is not present as shipped. The two N9K-SC-A system controllers do not replace a standby supervisor.
400G interfaces without fabric changes
The included N9K-C9508-FM-R fabric modules cannot support the N9K-X9624D-R2 400G line card. Changing optics alone does not add compatibility with that interface card.
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| N9K-C9508-B2-R |  N9K-C9508-B1 |  N9K-C9508 |  N9K-C9516 |  N9K-C9504-B2-R | |
|---|---|---|---|---|---|
| Depth | 806.7 mm | 806.7 mm | 806.7 mm | 806.7 mm | 842 mm |
| Form Factor | Chassis | Chassis | Chassis | Chassis | Chassis |
| Height | 577.8 mm | 577.8 mm | 577.8 mm | 934.1 mm | 311 mm |
| Manufacturer Part Number | N9K-C9508-B2-R | N9K-C9508-B1 | N9K-C9508 | N9K-C9516 | N9K-C9504-B2-R |
| Width | 445 mm | 445 mm | 445 mm | 445 mm | 445 mm |
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New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
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Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
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N9K-C9508-B2-R combines the Nexus 9000 family prefix N9K, the eight-slot C9508 chassis, the B2 component bundle, and R-Series fabric. The bundle includes one N9K-SUP-B, three power supplies, two N9K-SC-A modules, six N9K-C9508-FM-R modules, and three N9K-C9508-FAN fan trays. The R designation identifies the fabric configuration, not the unit's condition.
N9K-C9508-B2-R is managed through NX-OS using local serial or Ethernet management connections, NX-APIs, and Cisco Data Center Network Manager. Its installed N9K-C9508-FM-R modules support NX-OS only. The broader chassis family's support for multiple operating modes does not make this R-Series fabric configuration compatible with ACI.
No, N9K-C9508-B2-R reaches its announced end-of-sale date on July 31, 2027, with last support on July 31, 2032. Software maintenance ends January 29, 2028. No direct replacement PID is named; Nexus N9800 is a migration direction rather than a like-for-like replacement bundle.
ORM Systems offers N9K-C9508-B2-R new sealed or certified refurbished. ORM warranties are up to 3-year extended for new units and up to 1 year for certified refurbished units, with 30-day returns on every condition, terms apply. Cisco's separate 1-year limited hardware warranty cannot extend beyond July 31, 2032.
No, N9K-C9508-B2-R includes one N9K-SUP-B supervisor rather than an active-standby supervisor pair. Its two N9K-SC-A system controllers handle separate chassis-management functions and do not provide standby supervisor processing. A redundant supervisor configuration requires a second supervisor of the same type, specified separately from the standard bundle.
N9K-C9508-B2-R accepts N9K-X9636C-R, N9K-X9636C-RX, N9K-X9636Q-R, and N9K-X96136YC-R line cards with its included N9K-C9508-FM-R fabric modules. These are separate interface choices rather than ports supplied by the chassis bundle. N9K-X9624D-R2 requires N9K-C9508-FM-R2 fabric and is not compatible with the included fabric configuration.
The Nexus 9508 requires 13U of rack space, with chassis dimensions of 577.8 mm high, 445 mm wide, and 806.7 mm deep. N9K-C9500-RMK= is the rack-mount kit for this chassis. Cabinet planning must also accommodate cabling and front-to-back ventilation rather than relying on rack height alone.
N9K-C9508-B2-R includes N9K-C9508-FM-R fabric, while N9K-C9508-B2-R2 includes N9K-C9508-FM-R2 fabric supporting the N9K-X9624D-R2 400G line card. Both bundles reach end of sale on July 31, 2027. The original bundle suits existing R-Series interfaces; the R2 bundle accommodates the different fabric requirement of 400G line cards.
N9K-C9508-B2-R provides eight line-card slots, while N9K-C9504-B2-R provides four. This changes the number of interface cards accommodated in one chassis rather than removing the need to specify interfaces separately. Four-slot installations suit lower card counts; eight-slot installations accommodate larger modular configurations. Both reach end of sale July 31, 2027.
N9K-C9508-B2-R specifies a component bundle, while N9K-C9508 is the eight-slot chassis PID. The bundle includes its N9K-SUP-B, three power supplies, two N9K-SC-A modules, six N9K-C9508-FM-R modules, and three N9K-C9508-FAN trays. The chassis PID suits separately specified component builds; the bundle suits a defined R-Series starting configuration.
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