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Juniper

Juniper QDD-400G-DR4 | 400G | QSFP-DD | DR4 | 1310 nm | 500 m | MPO-12 | 4x100G DR breakout

SKU:QDD-400G-DR4

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Description

Standards-based 400G DR4 QSFP-DD optical module for 500 m single-mode links using 1310 nm parallel optics and MPO-12. Supports 4x100G DR breakout for flexible migration and aggregation use cases in spine/leaf and campus cores.

Features

- Standards-based 400G parallel optics for easy multi-vendor interoperability
- Supports 4x100G DR breakout for flexible architectures
- High-density MPO-12 connectivity
- Energy-efficient 1310 nm single-mode design
- Ideal for leaf–spine and campus core aggregation up to 500 m

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 fiber and connector are required?
A: Use OS2 single-mode fiber with an MPO-12 trunk; APC-terminated connectors are typically recommended for DR4 modules.

Q: Does this module support 4x100G breakout?
A: Yes. It supports 4x100GBASE-DR when used with an MPO-12 to 4x duplex LC breakout harness and compatible 100G DR optics on the far end.

Q: Is host-side FEC required?
A: Yes. KP4 FEC per 802.3bs is required for proper error performance.

Q: What MPO polarity should I use?
A: Type-B (key-up to key-up) polarity is commonly used for parallel 400G DR4 links; verify polarity across your cabling plant.

Technical Specifications

- Form factor: QSFP-DD
- Standard: IEEE 802.3bs 400GBASE-DR4
- Wavelength: 1310 nm (parallel)
- Fiber type: Single-mode (OS2)
- Reach: up to 500 meters
- Connector: MPO-12 (APC recommended)
- Lane configuration: 4x100G PAM4
- Breakout: Supports 4x100GBASE-DR via MPO-12 to 4x duplex LC harness
- FEC: RS(544,514) KP4 required on host
- Operating temperature: 0 to 70°C (standard)
- Digital diagnostics (DDM/DOM): Supported

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