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Arista

Arista SFP-25G-SR-Arista | 25G SFP28 Transceiver, Multi-Mode, 850nm, 100m, LC

SFP-25G-SR-Arista

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Description

The Arista SFP-25G-SR is a hot-swappable 25GBASE-SR SFP28 optical transceiver designed for short-reach multi-mode fiber applications in data centres and enterprise networks. Operating at 850nm with LC duplex connectors, it delivers 25.78 Gbps throughput up to 100m over OM4 fibre or 70m over OM3. The module features DDM/DOM monitoring, low power consumption under 1W, and full compliance with SFP28 MSA standards for seamless integration into Arista platforms.

Features

25.78 Gbps bi-directional data transmission over multi-mode fiber
- 850nm VCSEL laser transmitter and PIN photodiode receiver
- Hot-swappable SFP28 form factor for seamless installation and replacement
- Digital Diagnostic Monitoring (DDM/DOM) for real-time optical performance tracking
- LC duplex connector for industry-standard cabling infrastructure
- Low power consumption (<1W) for energy-efficient operations
- Commercial operating temperature range (0°C to 70°C)
- RoHS compliant and SFP28 MSA certified for environmental and industry standards
- Compatible with Arista platforms supporting 25GbE SFP28 interfaces
- Metal enclosure for reduced electromagnetic interference (EMI)

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: SFP28 hot-pluggable transceiver
- Data Rate: 25.78 Gbps (25GBASE-SR)
- Wavelength: 850nm VCSEL laser
- Connector Type: Duplex LC
- Fiber Type: Multi-mode fiber (MMF)
- Maximum Distance: 100m over OM4 MMF; 70m over OM3 MMF
- Optical Budget: 2.6 dB minimum
- Power Consumption: <1W typical
- Power Supply: Single 3.3V
- Operating Temperature: 0°C to 70°C (commercial)
- Digital Diagnostics: DDM/DOM monitoring via 2-wire interface
- Standards Compliance: IEEE 25GBASE-SR, SFP28 MSA (SFF-8402), RoHS

FAQs

Q: What fiber types are supported by the Arista SFP-25G-SR transceiver?
A: The SFP-25G-SR supports OM3 and OM4 multi-mode fiber. It provides distances up to 70m over OM3 and up to 100m over OM4 fibre, making it ideal for short-reach data centre and campus interconnects.

Q: Is this transceiver compatible with 10G Ethernet ports?
A: Some Arista 25G SFP28 transceivers support dual-rate operation for 10G/25G, but the SFP-25G-SR is optimised for 25GBASE-SR. Consult Arista's transceiver compatibility guide or contact your account manager to confirm dual-rate support for your specific platform.

Q: Does the SFP-25G-SR include digital diagnostic monitoring?
A: Yes, the SFP-25G-SR features built-in DDM/DOM functionality, allowing real-time monitoring of optical transmit and receive power, temperature, voltage, and bias current via a 2-wire interface for proactive network management.

Q: Can this transceiver interoperate with non-Arista 25G equipment?
A: Yes, Arista 25G transceivers are designed to interoperate with other industry-standard 25GBASE-SR transceivers that comply with IEEE specifications and SFP28 MSA standards, enabling multi-vendor network deployments.

Q: What is the typical power consumption of this module?
A: The SFP-25G-SR consumes less than 1W, making it energy-efficient for high-density switch deployments and reducing overall operating costs in large-scale data centre environments.

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