• Vibrant pink glossy Juniper QDD-2X100G-2M QSFP-DD DAC sticker
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Juniper

Juniper QDD-2X100G-2M | QSFP-DD→2xQSFP28 breakout DAC | 200G→2x100G | passive copper | 2 m | 28 AWG | 0–70°C

QDD-2X100G-2M

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Description

Passive direct-attach copper breakout cable that fans a single 200G QSFP-DD port into two independent 100G QSFP28 ports. Ideal for short, low-latency intra-rack or adjacent-rack links without optics or power draw. Requires a host QSFP-DD port that supports 2x100G breakout.

Features

- Simple 200G-to-2x100G fan-out for easy aggregation or migration
- Lower cost and power than optical transceivers
- Ultra-low latency copper link
- Robust 28 AWG twinax construction
- Tool-less deployment with QSFP-DD/QSFP28 MSA compliance

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

- Host interface: QSFP-DD (200G aggregate)
- Breakout: 2 × 100G to QSFP28 ports
- Cable type: Direct Attach Copper (passive twinax)
- Length: 2 meters
- Wire gauge: 28 AWG
- Operating temperature: 0 to 70°C (standard)
- Latency: near-zero (no optical conversion)
- Power: passive, no power consumption
- EMI: shielded twinax for low crosstalk
- MSA: QSFP-DD and QSFP28 form-factor compliant

FAQs

Q: Does this require a special breakout mode on the switch or router?
A: Yes. The QSFP-DD port must support 2x100G breakout/fan-out mode.

Q: Can this connect directly to QSFP28 100G ports on two devices?
A: Yes. The fan-out ends plug into two separate QSFP28 100G ports.

Q: Is this an active cable?
A: No, it is a passive DAC with no active components or power draw.

Q: What applications is this best suited for?
A: Short-reach intra-rack or adjacent-rack connections where low cost and ultra-low latency are desired.

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