Arista

Arista CAB-Q-Q-100G-2M | 100G QSFP28 DAC, 100GBASE-CR4, QSFP28-to-QSFP28, passive Twinax, 2m reach

Arista CAB-Q-Q-100G-2M | 100G QSFP28 DAC, 100GBASE-CR4, QSFP28-to-QSFP28, passive Twinax, 2m reach

SKU:CAB-Q-Q-100G-2M

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Description

Standards-based QSFP28-to-QSFP28 passive Twinax DAC delivering reliable 100GBASE-CR4 connectivity up to 2 meters for in-rack and top-of-rack deployments. Ideal for low-latency, low-power 100G interconnects.

Features

- Plug-and-play 100G interconnect
- No power or optics needed (passive copper)
- Low latency and low cost for short runs
- Robust QSFP28 latching connectors
- MSA and SFF compliance for interoperability
- Ideal for TOR and spine-leaf wiring

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 an active DAC?
A: No. It is a passive QSFP28 DAC for 100GBASE-CR4.

Q: Do I need optical modules?
A: No. The cable integrates the QSFP28 interfaces; no separate optics are required.

Q: Is it suitable for breakout applications?
A: No. This is a straight QSFP28-to-QSFP28 cable, not a 4x SFP28 breakout.

Q: What is the max link length?
A: 2 meters when both ends support passive 100G QSFP28 DAC.

Q: Will it work with my switch or NIC?
A: It is MSA-compliant for QSFP28 DAC; verify your device supports third-party DACs.

Technical Specifications

- Data rate: 100 Gigabit Ethernet (4x25G NRZ)
- Base standard: IEEE 802.3bj 100GBASE-CR4
- Form factor: QSFP28 to QSFP28
- Cable type: Direct Attach Copper (Twinax), passive
- Length: 2 meters
- Connector: QSFP28 male to QSFP28 male
- Compliance: QSFP28 MSA, SFF-8665, RoHS
- Use case: Short-reach 100G in/near-rack connections

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