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Arista

Arista CAB-Q-S-1M | 4x10G | QSFP+↔4xSFP+ | 40GBASE-CR4 breakout | n/a | 1m | passive twinax DAC

Arista CAB-Q-S-1M | 4x10G | QSFP+↔4xSFP+ | 40GBASE-CR4 breakout | n/a | 1m | passive twinax DAC

SKU:CAB-Q-S-1M

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Description

Passive 40G QSFP+ to 4×10G SFP+ breakout direct-attach copper (DAC) cable, 1 meter. Enables a single QSFP+ 40G port to present four separate 10G lanes for switch-to-server or TOR fan-out deployments. Standards-compliant with IEEE 802.3ba 40GBASE-CR4 breakout/10GBASE-CR, QSFP+ MSA (SFF-8436), and SFP+ MSA (SFF-8431). Ultra‑low latency, near‑zero power, and robust latching for dependable installations.

Features

- QSFP+ to 4× SFP+ 10G breakout for flexible deployments
- Passive twinax for minimal latency and power
- MSA and IEEE standards compliance
- Rugged build with secure latch mechanisms
- Simple, plug‑and‑play installation

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: Can I connect this to four separate servers?
A: Yes, each SFP+ leg provides an independent 10G link to a supported 10G port, provided the host QSFP+ port supports breakout.

Q: Is it vendor-locked?
A: The cable follows MSA standards, but some platforms may enforce vendor coding. Check your device’s compatibility list.

Q: Does it require any optics?
A: No optics are required; it is a copper DAC.

Q: What distance can it cover?
A: This model is 1 meter; use within the specified length for reliable operation.

Technical Specifications

- Interface speed: 4×10 Gbps (breakout from 40G)
- Cable type: Passive copper twinax, direct-attach (DAC)
- Form factor/connectors: QSFP+ male to 4× SFP+ male
- Length: 1 meter
- Standards: IEEE 802.3ba 40GBASE-CR4 breakout; 10GBASE-CR; SFF-8436 (QSFP+); SFF-8431 (SFP+)
- Power: Passive, near-zero power consumption
- Latency: Ultra-low, no optical conversion
- Use case: QSFP+ 40G port fan-out to four 10G endpoints
- Compatibility: Requires QSFP+ port and platform that support 4×10G breakout

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