• Silver-colored arista sfp-25g-sr sfp28 transceiver modules with blue plastic handles and metallic connectors for 25gbase-sr
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Arista

Arista SFP-25G-SR | 25G SFP28 Transceiver, SR, 25GBase-SR, OM3/OM4 MMF

Arista SFP-25G-SR | 25G SFP28 Transceiver, SR, 25GBase-SR, OM3/OM4 MMF

SFP-25G-SR

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Description

The Arista SFP-25G-SR is a 25GBase-SR SFP28 short-reach optical transceiver designed for high-density data centre and enterprise backbone deployments. Supporting dual-rate 10G/25G operation, it delivers reliable connectivity over multimode fibre — up to 70 metres on OM3 MMF and up to 100 metres on OM4 MMF — making it an ideal choice for top-of-rack server interconnects, spine-leaf cabling, and storage area network links. The LC duplex interface and 850 nm VCSEL light source provide the low-latency, high-bandwidth performance that modern 25G infrastructure demands.

This transceiver is compatible with Arista 7000-series switches and platforms supporting 25GBase-SR SFP28 ports, and its dual-rate capability also allows interoperability with 10GBase-SR equipment for phased migration scenarios. As a genuine Arista-coded module, it is fully supported under Arista EOS with digital optical monitoring (DOM) for real-time diagnostics. Visit iptrading.com.au to secure your order — enterprise-grade hardware with expert support.

Features

- Dual-rate 10G/25G operation for seamless migration from 10GBase-SR to 25GBase-SR infrastructure
- 850 nm VCSEL light source optimised for short-reach multimode fibre links
- LC duplex connector for easy integration with standard MMF patch panels and cabling
- Digital Optical Monitoring (DOM) support for real-time link diagnostics via Arista EOS
- Arista-coded for full EOS compatibility — no third-party warnings or unsupported-module errors
- RoHS compliant — meets environmental and regulatory standards for commercial deployments
- Hot-pluggable design for zero-downtime installation and replacement
- Suitable for top-of-rack server connections, spine-leaf fabric links, and SAN interconnects

Warranty

Arista hardware products come with a 1-year limited hardware warranty, covering defects in materials and workmanship under normal use.
Extended Warranty Options:
IP Trading offers tailored extended warranty solutions and support packages for Arista products. Contact our team to explore options that align with your organisation's needs.
https://www.arista.com/assets/data/pdf/Warranty.pdf

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Datasheet

Technical Specifications

- Form factor: SFP28 (SFP+/SFP28 compatible slot)
- Data rate: 25.78 Gbps (25GBase-SR); dual-rate 10G/25G (10/25GBase-MR-SR)
- Wavelength: 850 nm (VCSEL)
- Connector type: LC Duplex
- Fibre type: Multimode (MMF)
- Reach: Up to 70 m over OM3 MMF
- Reach: Up to 100 m over OM4 MMF
- Digital Optical Monitoring (DOM): Yes
- Interface standard: IEEE 802.3by 25GBase-SR
- Operating temperature: 0°C to +70°C (commercial)
- Power consumption: Typically ≤1.0 W
- RoHS compliant: Yes

FAQs

Q: What fibre type and maximum distance does the SFP-25G-SR support?
A: The SFP-25G-SR operates over multimode fibre (MMF), achieving up to 70 metres on OM3 cable and up to 100 metres on OM4 cable at 25G speeds.

Q: Is this a dual-rate transceiver — can it run at 10G as well as 25G?
A: Yes. The SFP-25G-SR supports dual-rate 10/25G operation (10/25GBase-MR-SR), allowing it to interconnect with both 10GBase-SR and 25GBase-SR equipment. This is useful for phased network upgrades.

Q: Which Arista switches are compatible with the SFP-25G-SR?
A: The SFP-25G-SR is designed for use in Arista switches and platforms with SFP28 ports, including the Arista 7050X, 7060X, 7170, and 7280 series. Always verify port compatibility with your specific Arista EOS version.

Q: Does the SFP-25G-SR support Digital Optical Monitoring (DOM)?
A: Yes, it supports DOM, allowing real-time monitoring of optical power levels, temperature, voltage, and bias current directly through Arista EOS — simplifying fault diagnosis and proactive maintenance.

Q: Can I purchase the Arista SFP-25G-SR in Australia through IP Trading?
A: Yes. IP Trading (iptrading.com.au) is an Australian B2B IT hardware reseller stocking Arista transceivers. Contact the team for pricing, availability, and volume purchasing options with expert pre-sales support.

Q: What is the difference between SFP+ and SFP28 — will this fit my existing SFP+ ports?
A: SFP28 is mechanically identical to SFP+ and will physically fit SFP+ slots; however, 25G speeds are only available on SFP28-capable ports. In dual-rate mode, the transceiver can negotiate down to 10G on SFP+ ports, depending on platform support.

Datasheet

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