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Arista

Arista CAB-Q-4S-100G-1M | 100G↔4×25G | QSFP28→4×SFP28 | 100GBASE-CR4 / 25GBASE-CR | DAC twinax (copper) | 1m reach

Arista CAB-Q-4S-100G-1M | 100G↔4×25G | QSFP28→4×SFP28 | 100GBASE-CR4 / 25GBASE-CR | DAC twinax (copper) | 1m reach

SKU:CAB-Q-4S-100G-1M

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Description

QSFP28 to 4×SFP28 breakout direct-attach copper (DAC) for splitting one 100G port into four independent 25G links. Ideal for high-density server, storage, or leaf connections where 4×25G fan-out is supported. Length: 1 meter.

Features

- Enables 1×100G to 4×25G fan-out from a single QSFP28 port
- Ultra-low latency and power compared to optics
- Robust twinax copper construction
- Hot-swappable on compatible QSFP28/SFP28 ports
- Standards-based CR interfaces for broad platform support

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

Technical Specifications

- Aggregate speed: 100 Gbps; breakout: 4×25 Gbps legs
- Form factor: QSFP28 to 4× SFP28
- Base standards: 100GBASE-CR4 (QSFP28 side) / 25GBASE-CR (SFP28 legs)
- Cable type: Direct Attach Copper (Twinax)
- Length: 1 meter
- Wavelength: N/A (copper)
- Connectors: QSFP28 host end; 4× SFP28 device ends
- Use case: 100G to 4×25G breakout for servers/NICs or leaf ports
- Requirements: Device must support 4×25G breakout from a QSFP28 port

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