Cisco

Cisco NXA-QDD-CU3M | 400G QSFP-DD DAC | 400GBASE-CR8 | passive copper | 3m reach | QSFP-DD to QSFP-DD

SKU:NXA-QDD-CU3M

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Description

High-density 400G QSFP-DD passive copper DAC for short-to-medium in‑rack interconnects where simplicity and ultra‑low latency are required. Suitable for connecting 400G switch ports or switch-to-server links across adjacent racks.

Features

- Plug‑and‑play 400G copper interconnect
- Near‑zero latency for performance‑sensitive links
- Cost‑effective, no optics required
- Secure latching and strain relief for reliable installs

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

Technical Specifications

- Cable type: Direct Attach Copper (DAC), passive
- Form factor: QSFP-DD (both ends)
- Data rate: up to 400 Gbps aggregate
- Ethernet standard: 400GBASE-CR8
- Length: 3 meters
- Connector: QSFP-DD to QSFP-DD
- Media: Twinax copper
- Typical use: 400G ToR or adjacent‑rack interconnects
- Power requirement: None (passive cable)
- Note: Requires QSFP-DD 400G ports; not compatible with QSFP28/QSFP56-only ports

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