• Cisco N9K-X9736Q-FX Nexus 9000 switch with 36x40G QSFP+ ports
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Cisco

Cisco N9K-X9736Q-FX | Switch: 36x40G QSFP+ | MACsec | ACI Spine + NX-OS

N9K-X9736Q-FX

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Description

36-port 40G QSFP+ FX line card with MACsec support for secure, efficient 40G fabrics. Ideal for ACI spine or NX-OS aggregation where 40G density, deterministic latency, and robust telemetry/QoS are required.

Features

- 36x40G QSFP+ density for spine/aggregation
- MACsec capability for secure interconnects
- Operates in NX-OS or Cisco ACI environments
- Cloud-scale architecture with consistent performance
- Hot-swappable for minimized downtime

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- Product type: Modular switch line card (data center)
- Port density: 36 x 40G
- Port form factor: QSFP+
- Security: MACsec (FX generation; see software/license notes)
- Operational roles: NX-OS aggregation, Cisco ACI spine
- Transceiver support: QSFP+ 40G optics (e.g., SR4/LR4/PSM4 per platform matrix)
- Typical wavelengths: 850 nm (SR4), 1310 nm (LR4/PSM4)
- Typical connectors: MPO-12 (SR4/PSM4), duplex LC (LR4)
- Hot-swappable: Yes
- Compatible chassis: Cisco Nexus 9500 Series (e.g., 9504/9508/9516) with compatible supervisors/fabric modules
- Use cases: 40G spine aggregation, secure DC fabrics, brownfield 40G environments

FAQs

Q: Does this card support MACsec on all ports?
A: MACsec is supported on the FX generation; coverage depends on software release and licensing. Check the platform feature matrix for details.

Q: Is it compatible with both ACI and NX-OS?
A: Yes. It supports NX-OS standalone and Cisco ACI spine roles with the appropriate system configuration.

Q: Which optics and cables can I use?
A: QSFP+ SR4 for short MMF, LR4/PSM4 for SMF. Direct-attach copper (DAC) and active optical cables (AOC) may be supported—verify platform compatibility.

Q: Which chassis are supported?
A: Cisco Nexus 9500 Series (9504/9508/9516) with compatible supervisors and fabric modules for FX line cards.

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