• Cisco NXM-X4D 400GbE LEM uplink module with silver server rack and green circuit board
  • Cisco NXM-X4D 400GbE LEM uplink module with silver rack, green PCB
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Cisco

Cisco NXM-X4D | 400GbE LEM | 4x QSFP‑DD ports | high‑capacity uplink module

NXM-X4D

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Description

400GbE Line Expansion Module (LEM) delivering four QSFP‑DD ports for ultra‑high‑capacity uplinks on supported Nexus 3000 platforms. Ideal for 100/400G spine connectivity and gradual migration to 400G.

Features

- Delivers 4x 400GbE uplinks for next‑gen spine connectivity
- QSFP‑DD flexibility with potential downspeeding on supported platforms
- Supports qualified optics and DAC/AOC for varied distances and costs
- Scales bandwidth while preserving investment in existing fabrics
- Tool‑assisted, field‑installable expansion for Nexus 3000

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

- Interface speed: 400 Gigabit Ethernet
- Port count: 4 x 400G (platform‑dependent enablement)
- Port form factor: QSFP‑DD
- Media support: QSFP‑DD optics and DAC/AOC (platform‑qualified)
- Downspeeding/breakout: Platform‑dependent (e.g., 4x100G on supported systems)
- Installation: Field‑installable; hot‑swap behavior depends on host switch
- Compatibility: Selected Nexus 3000 models with LEM bays
- Licensing: Hardware install typically license‑free; platform features may require licenses

FAQs

Q: Will this 400G LEM work in my Nexus 3000 switch?
A: Only models with compatible LEM slots and supported software will accept it. Share your exact model/SW version for confirmation.

Q: Does it support 100G operation from QSFP‑DD ports?
A: Many platforms support downspeeding or breakout from QSFP‑DD to 100G, but it is platform‑dependent. Check the host’s guide.

Q: Which transceivers are supported?
A: Use platform‑qualified QSFP‑DD optics or DAC/AOC. Refer to the platform transceiver compatibility list.

Q: Is additional licensing required?
A: The module itself is license‑free, though specific port counts or features may require platform licenses.

Q: Can I mix 100G and 400G LEMs in the same switch?
A: Mixing is platform‑dependent; consult the hardware guide to confirm supported combinations.

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