• Vibrant pink glossy Juniper QDD-8X50G-1M 400G DAC sticker
1 1

Juniper

Juniper QDD-8X50G-1M | 400G→8x50G DAC | QSFP56-DD↔8xSFP56 | 400GBASE-CR8/50GBASE-CR | passive twinax | 26AWG | reach 1m

QDD-8X50G-1M

POA
POA
POA
Sale Sold out
Taxes included. Shipping calculated at checkout.

Description

High-density 400G to eight 50G breakout passive copper DAC for short-reach top-of-rack connectivity. QSFP56-DD on the switch side breaks out to eight SFP56 50G links, delivering ultra-low latency and zero power draw versus optics. Standards-based 400GBASE-CR8/50GBASE-CR with CMIS management ensures broad interoperability on platforms that support QSFP56-DD breakout to 8x50G.

Features

- High-density 8-way 50G breakout from a single 400G port
- Ultra-low latency, zero power consumption passive design
- Standards-based 400GBASE-CR8/50GBASE-CR for broad interoperability
- Rugged 26 AWG twinax for reliable 1 m performance
- Integrated QSFP56-DD and SFP56 ends simplify deployment

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.

View full details

specs-tabs

Technical Specifications

FAQs

Technical Specifications

- Form factor: QSFP56-DD to 8x SFP56 passive DAC (breakout)
- Aggregate data rate: 400GbE; breakout: 8x 50GbE PAM4
- Cable type: Twinax copper, passive
- Wire gauge: 26 AWG
- Length: 1 meter
- Electrical standards: IEEE 802.3ck (400GBASE-CR8), IEEE 802.3cd (50GBASE-CR)
- Management: CMIS
- Operating temperature: 0 to 70°C (standard temp)
- Connectors: QSFP-DD to 8x SFP56 integrated ends
- FEC: RS-FEC required per 802.3cd for 50G links (host dependent)
- Latency: Near-zero (no retimers/gearboxes)
- EMI: Shielded twinax with robust pull-latch tabs
- Compatibility: Hosts supporting QSFP56-DD 8x50G breakout and SFP56 50G ports
- RoHS compliant

FAQs

Q: Is this cable passive or active?
A: It is a passive twinax DAC with no active components or power draw.

Q: What devices is it compatible with?
A: Any switch/router/server that supports QSFP56-DD breakout to 8x50G and has corresponding SFP56 50G ports. Check your platform’s hardware guide for QSFP56-DD 8x50G breakout support.

Q: What standards does it follow?
A: 400GBASE-CR8 on the QSFP56-DD side and 50GBASE-CR on the SFP56 legs, with CMIS management.

Q: Does it support 25G or 10G on the SFP side?
A: No. The breakout legs are SFP56 and operate at 50G. Use appropriate optics/cables for lower speeds.

Q: What is the recommended use case?
A: Short-reach 400G switch ports breaking out to eight 50G server or leaf connections within the same rack or adjacent racks.

  • Related products

Recently Viewed

  • Request a Quote

    Looking for competitive pricing? Submit a request, and our team will provide a tailored quote that fits your needs.

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Call us Now  

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Contact us