Arista CAB-Q-S-1M-Arista | 40G QSFP+ to 4x 10G SFP+ Breakout Cable, 1m Passive DAC

SKU:CAB-Q-S-1M-Arista

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Description

The Arista CAB-Q-S-1M is a 1-meter passive direct attach copper breakout cable designed for high-density 40G to 10G connectivity in data centers and enterprise networks. It features a QSFP+ connector on one end and four SFP+ connectors on the other, enabling a single 40G port to fan out to four 10G connections. Ideal for cost-effective, low-latency, short-reach connections within racks or between adjacent racks.

Features

Passive copper breakout design for low power consumption and cost-effective short-reach connectivity
- MSA-compliant QSFP+ and SFP+ connectors ensuring broad interoperability
- Supports 40GBASE-CR4 and 10GBASE-CU Ethernet standards
- Hot-swappable for easy installation and maintenance without network downtime
- Low latency passive copper technology for high-performance data transmission
- Compliant with IEEE 802.3ba, SFF-8436, and SFF-8431/8432 specifications
- Suitable for InfiniBand QDR, DDR, and SDR applications
- RoHS compliant and CE certified for environmental and safety standards
- Commercial temperature range operation from 0°C to 70°C

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

Form Factor: QSFP+ to 4x SFP+ passive direct attach copper breakout cable
- Cable Length: 1 meter (3.3 feet)
- Data Rate: Up to 41.2 Gbps aggregate (40G QSFP+), 10.3125 Gbps per SFP+ channel
- Cable Type: Passive twinax copper, AWG30
- Connector A: 1x QSFP+ (SFF-8436 compliant)
- Connector B: 4x SFP+ (SFF-8431/8432 compliant)
- Standards Compliance: IEEE 802.3ba 40GBASE-CR4, 10GBASE-CU, QSFP+ MSA, SFP+ MSA
- Operating Temperature: 0°C to 70°C (commercial)
- Power Consumption: 0.02W typical
- Applications: 40G Ethernet, 10G Ethernet, InfiniBand QDR/DDR/SDR, Fibre Channel
- Hot-Swappable: Yes

FAQs

Q: What is the primary use case for the CAB-Q-S-1M breakout cable?
A: This cable is used to break out a single 40G QSFP+ port into four separate 10G SFP+ connections, enabling flexible connectivity between 40G and 10G networking equipment within data centers, ideal for server-to-switch or top-of-rack deployments.

Q: Is this cable compatible with non-Arista equipment?
A: While designed and coded for Arista switches, passive DAC cables like this one are typically compatible with other vendors' equipment that support standard QSFP+ and SFP+ MSA specifications, though compatibility should be verified with the specific devices.

Q: What is the maximum distance supported by this passive cable?
A: As a passive direct attach copper cable, the CAB-Q-S-1M is designed for short-reach connections up to 1 meter. For longer distances, active copper or fiber optic solutions would be required.

Q: Does this cable require any external power or configuration?
A: No, the CAB-Q-S-1M is a passive copper cable that draws minimal power from the connected ports and requires no external power supply or configuration. It is hot-swappable and plug-and-play.

Q: What applications and protocols does this cable support?
A: The cable supports 40G Ethernet, 10G Ethernet, InfiniBand QDR/DDR/SDR, and Fibre Channel protocols, with data rates ranging from 2.125 Gbps to 41.2 Gbps across all four channels.