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

Arista SFP-25G-SR-E | 25G SFP28 SR Transceiver, 850nm MMF, LC, No-FEC Low Latency

Arista SFP-25G-SR-E | 25G SFP28 SR Transceiver, 850nm MMF, LC, No-FEC Low Latency

SFP-25G-SR-E

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Description

The Arista SFP-25G-SR-E is an Enhanced Performance (E-Series) 25GBASE-SR SFP28 optical transceiver engineered for multimode fibre deployments that demand ultra-low latency operation. Guaranteeing a worst-case BER of less than 1E-12 without FEC, it eliminates the approximately 250ns of additional latency introduced by Forward Error Correction — making it the ideal choice for latency-sensitive environments such as high-frequency trading, financial networks, and Arista 7130B Series ultra-low latency platforms. It supports reach up to 30m/50m over OM3/OM4 MMF without FEC, or up to 50m/100m with FEC enabled.

Compatible with all Arista 25G SFP ports and compliant with IEEE 25GBASE-SR and SFP28 MSA standards, this transceiver integrates seamlessly into existing OM3/OM4 fibre infrastructure without costly upgrades. Built-in Digital Diagnostic Monitoring (DDM) provides real-time visibility into optical link health, and the hot-pluggable design simplifies installation and field maintenance. RoHS compliant. Available now at iptrading.com.au — competitive prices and local support.

Features

- Enhanced Performance (E-Series) design guarantees BER <1E-12 without FEC — eliminates ~250ns FEC latency for ultra-low latency applications
- Supported on all Arista 25G SFP ports including the ultra-low latency 7130B Series platforms
- Enables low-latency 25G connectivity over existing OM3/OM4 MMF infrastructure with no FEC required
- Optional FEC mode extends reach to 50m (OM3) or 100m (OM4) for greater deployment flexibility
- Built-in DDM/DOM for real-time monitoring of TX/RX power, temperature, voltage, and bias current
- Hot-pluggable design for easy field installation and replacement with no downtime
- Compliant with IEEE 25GBASE-SR, SFP28 MSA, and RoHS standards

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)
- Data Rate: 25GBASE-SR (25 Gbps)
- Wavelength: 850nm VCSEL
- Fiber Type: Multimode Fiber (MMF)
- Connector: Duplex LC
- Reach without FEC: Up to 30m (OM3) / Up to 50m (OM4)
- Reach with FEC: Up to 50m (OM3) / Up to 100m (OM4)
- Worst-case BER: <1E-12 without FEC; Typical BER <1E-15
- Digital Diagnostic Monitoring (DDM/DOM): Yes
- Hot-Swappable: Yes
- Power Supply: Single 3.3V
- Operating Temperature: 0°C to 70°C (Commercial)
- Compliance: IEEE 25GBASE-SR, SFP28 MSA, RoHS

FAQs

Q: What makes the SFP-25G-SR-E different from a standard 25G SR transceiver?
A: The SFP-25G-SR-E is an Enhanced Performance (E-Series) transceiver that guarantees a worst-case BER of less than 1E-12 without Forward Error Correction (FEC). Standard 25G SR transceivers often require FEC to achieve reliable links, which adds approximately 250ns of latency. The E-Series eliminates this overhead, making it ideal for latency-critical applications like financial trading and HPC networks.

Q: What fibre and reach does the SFP-25G-SR-E support?
A: Over multimode fibre without FEC, it supports up to 30m on OM3 and up to 50m on OM4. With FEC enabled, reach extends to 50m on OM3 and 100m on OM4 — making it compatible with most existing intra-datacenter MMF cabling plants.

Q: Which Arista platforms is the SFP-25G-SR-E compatible with?
A: The SFP-25G-SR-E is supported on all Arista switches and platforms with 25G SFP ports, including the ultra-low latency Arista 7130B Series. It is compliant with IEEE 25GBASE-SR and SFP28 MSA standards, and is hot-pluggable and interoperable with industry-standard 25G SR transceivers.

Q: Does the SFP-25G-SR-E support Digital Diagnostic Monitoring?
A: Yes, the SFP-25G-SR-E includes built-in DDM (also known as DOM — Digital Optical Monitoring), allowing network administrators to monitor real-time transceiver parameters such as TX/RX optical power, temperature, supply voltage, and laser bias current directly via the switch management interface.

Q: Can I purchase the Arista SFP-25G-SR-E in Australia through IP Trading?
A: Yes. IP Trading (iptrading.com.au) stocks Arista transceivers including the SFP-25G-SR-E and offers competitive pricing with local Australian support. Contact our team for volume pricing, compatibility queries, or technical advice before purchasing.

Q: Is the SFP-25G-SR-E suitable for use in high-frequency trading or financial networks?
A: Absolutely. The E-Series design specifically targets ultra-low latency environments. By operating at BER <1E-12 without FEC, it avoids the ~250ns latency penalty of FEC processing. Combined with Arista's 7130B Series platform, this transceiver is purpose-built for HFT, co-location, and other latency-sensitive financial market infrastructures.

Datasheet

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