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Cisco

Cisco QDD-400-AOC25M | 400G QSFP-DD AOC, 400GBASE-SR8-compatible, 850nm MMF, 25m reach, QSFP-DD to QSFP-DD

SKU:QDD-400-AOC25M

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Description

High-performance 400G active optical cable with integrated QSFP-DD modules for simple, low-latency 400GbE links over multimode fiber. Ideal for top-of-rack to spine connections where longer reach and slimmer cabling are preferred over copper DAC. 850nm VCSEL optics and aqua MMF jacket deliver reliable, low-power operation with plug‑and‑play deployment.

Features

- Integrated 400G optical link—no separate transceivers or patch cords required
- 850nm multimode design for low power and low latency
- QSFP-DD MSA compliance and 400GBASE-SR8-compatible operation
- Slim, flexible cable for improved airflow and easier routing
- Fixed 25m reach for predictable, consistent performance

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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FAQs

Technical Specifications

FAQs

Q: What is the difference between an AOC and a DAC?
A: An AOC uses integrated optical fiber and modules for longer reach and thinner, lighter cabling, while a DAC is copper-based, thicker, and typically limited to shorter distances.

Q: Can this 400G AOC be used between different vendor devices?
A: AOCs follow the QSFP-DD MSA, but platform firmware may require matching coding. Check device compatibility and vendor coding requirements before deployment.

Q: Is this cable breakout-capable (e.g., 400G to 8x50G)?
A: No. This is a straight 400G-to-400G AOC. Breakout requires a purpose-built breakout assembly.

Q: Does this AOC replace separate transceivers and patch cords?
A: Yes. It integrates two QSFP-DD optical ends and multimode fiber into one plug-and-play assembly.

Technical Specifications

- Data rate: 400 Gbps
- Form factor: QSFP-DD to QSFP-DD Active Optical Cable (AOC)
- Length: 25 meters
- Optical wavelength: 850 nm (VCSEL)
- Fiber type: Multimode (aqua jacket)
- Standards/compatibility: QSFP-DD MSA, 400GBASE-SR8-compatible
- Applications: 400GbE switching/interconnects; supported InfiniBand/Ethernet platforms where coded/approved
- Connector: Integrated QSFP-DD modules on both ends
- Direction: Duplex, fixed-length assembly
- Jacket color: Aqua

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