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Aruba R9F77A | 100G QSFP28 DAC (passive) | 1m copper twinax | QSFP28-to-QSFP28 | 100GBASE-CR4

Aruba R9F77A | 100G QSFP28 DAC (passive) | 1m copper twinax | QSFP28-to-QSFP28 | 100GBASE-CR4

SKU:R9F77A

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Description

Low-latency 100G passive direct attach copper cable for short-distance top-of-rack and adjacent rack links. Twinax construction provides robust signal integrity and cost-effective 100G connectivity with zero power draw. Ideal for compact server-to-switch or switch-to-switch connections up to 1 meter.

Features

- Zero-power, cost-effective 100G connectivity
- Ultra-low latency for performance-sensitive links
- Rugged twinax build for reliable signal integrity
- Quick plug-and-play deployment in dense racks
- Ideal for short TOR and adjacent rack runs

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 this DAC passive or active?
A: It is a passive twinax DAC designed for short-reach, low-latency connections.

Q: What ports does it work with?
A: QSFP28 100G ports that support passive CR4 DAC. Check your device’s compatibility list.

Q: Can I run this cable longer than 1 meter?
A: Use the specified 1 m length. For longer distances, consider longer DACs (if supported) or an AOC/optic solution.

Q: Does the cable require configuration?
A: No, it is plug-and-play. Link parameters are negotiated by the endpoints.

Q: Is there EMI concern with copper?
A: Twinax DAC is shielded, but for EMI-sensitive routes consider AOC for superior immunity.

Technical Specifications

- Data rate: 100 GbE
- Form factor: QSFP28 on both ends
- Cable type: Passive copper twinax DAC
- Standard: 100GBASE-CR4
- Reach/length: 1 meter
- Connector: QSFP28 male to QSFP28 male
- Power: Passive (no external power)
- Latency: Ultra-low (no optics)
- Use case: TOR/adjacent rack interconnects

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