• Vibrant pink glossy Juniper fruit sticker for QDD-400G-SR8 400G QSFP-DD transceiver
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Juniper

Juniper QDD-400G-SR8 | 400G QSFP-DD | SR8 MMF | 850nm | 100m OM4 | MPO-16

QDD-400G-SR8

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Description

High-throughput 400G SR8 parallel-optic module for short-reach MMF links in leaf-spine and AI/ML fabrics. 8x50G PAM4 lanes over MPO-16 deliver cost-effective 100 m OM4 performance with IEEE 802.3cm compliance.

Features

- High-density 400G over multimode fiber
- IEEE 802.3cm SR8 compliance for interoperability
- MPO-16 parallel optics for scalable fabrics
- 8x50G PAM4 lanes for efficient aggregation
- Hot-swappable QSFP-DD module
- DOM/DDM for proactive link monitoring
- Optimized for spine/leaf and ML cluster interconnects
- Commercial temperature range

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

- Data rate: 400 Gb/s aggregate
- Form factor: QSFP-DD
- Optical standard: 400GBASE-SR8 (IEEE 802.3cm)
- Wavelength: 850 nm
- Fiber type: Multimode (OM4/OM3)
- Reach: up to 100 m (OM4), up to 70 m (OM3)
- Connector: MPO-16 (female)
- Electrical interface: 8x 50G PAM4
- Digital diagnostics: DOM/DDM supported
- Operating temperature: 0 to 70 °C (commercial)
- Hot-swappable: Yes
- Compliance: RoHS

FAQs

Q: What connector does SR8 require?
A: An MPO-16 (female) connector with OM4 (recommended) or OM3 MMF.

Q: Is it standards-compliant?
A: Yes, it conforms to IEEE 802.3cm 400GBASE-SR8.

Q: What distances can I expect?
A: Up to 100 m on OM4 and 70 m on OM3 under typical conditions.

Q: Does it support DOM?
A: Yes, digital diagnostics/DOM are supported.

Q: Can I use it for breakout?
A: SR8 provides eight 50G optical lanes; breakout options depend on switch support and cabling. Check platform documentation.

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