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Cisco

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

SKU:QDD-400G-SR8-S

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Description

Standards-based 400G SR8 MMF transceiver for short-reach data center interconnects with MPO-16 APC interface. Designed for 100 m OM4 performance and seamless QSFP-DD hot-swap deployment in high-density fabrics.

Features

- 400G SR8 for short-reach MMF links
- MPO-16 APC interface for precise mating
- IEEE 802.3cm compliant for interop
- 8x50G PAM4 lanes for high throughput
- Hot-swappable QSFP-DD form factor
- Real-time DOM/DDM monitoring
- Optimized for data center spine/leaf fabrics
- Commercial operating 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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FAQs

Technical Specifications

FAQs

Q: Is the MPO interface APC or PC?
A: This variant uses an MPO-16 APC interface. Use matching APC cassettes and trunks.

Q: What fiber grade is recommended?
A: OM4 is recommended for the full 100 m reach; OM3 supports up to 70 m.

Q: Is it interoperable with other SR8 optics?
A: Yes, it adheres to IEEE 802.3cm 400GBASE-SR8. Verify connector type and polarity.

Q: Does it support diagnostics?
A: Yes, DOM/DDM is supported for link health monitoring.

Q: What host signaling does it use?
A: 8x 50G PAM4 on the electrical host interface.

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 APC (female)
- Electrical interface: 8x 50G PAM4
- Digital diagnostics: DOM/DDM supported
- Operating temperature: 0 to 70 °C (commercial)
- Hot-swappable: Yes
- Compliance: RoHS

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