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Arista
Arista SFP-25G-SR New - 25GBASE-SR SFP28 Transceiver, up to 70m over OM3 MMF or 100m over OM4 MMF
MPN: SFP-25G-SR
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Every WhaleyComm unit is professionally tested, reset to factory defaults, and certified by our in-house engineers — the same standard trusted by 5,000+ organisations across 25 years. Not a refurb marketplace. A certified lifecycle partner.
Tested to factory specification. Backed by 25 years of enterprise trust.
The Arista SFP-25G-SR is a New 25GBASE-SR SFP28 short-range optical transceiver built to meet the demanding performance and density requirements of modern enterprise and hyperscale data centers. Operating at 25 Gigabits per second over multimode fiber, this transceiver supports reach distances of up to 70 meters over OM3 MMF and up to 100 meters over OM4 MMF — covering the vast majority of intra-data-center cabling runs.Designed specifically for Arista network platforms, the SFP-25G-SR integrates seamlessly with Arista's EOS-based switches, enabling plug-and-play deployment with full software visibility and diagnostics. The SFP28 form factor ensures backward mechanical compatibility with SFP+ slots where supported, while delivering the higher throughput needed for 25G server-to-switch and switch-to-switch connectivity.
With a New condition rating, this unit ships factory-fresh and is backed by the manufacturer's standard quality assurance. Digital Optical Monitoring (DOM) support provides real-time visibility into key transceiver parameters such as temperature, voltage, TX power, and RX power — simplifying troubleshooting and proactive network management.
Ideal for spine-leaf fabric deployments, server uplinks, and storage network interconnects, the Arista SFP-25G-SR delivers a cost-effective path to 25G without sacrificing reliability or ecosystem integration. It represents exceptional value for IT teams standardizing on Arista infrastructure.
Technical Specifications
MPN
SFP-25G-SR
Brand
Arista
Form Factor
SFP28
Data Rate
25 Gbps
Ethernet Standard
25GBASE-SR
Fiber Type
Multimode Fiber (MMF)
Maximum Reach (OM3)
70m
Maximum Reach (OM4)
100m
Wavelength
850nm
Connector Type
LC Duplex
Condition
New
DOM Support
Yes (Digital Optical Monitoring)
Ideal Use Cases
Data Center Server Uplinks
The SFP-25G-SR is ideal for connecting 25G-capable servers directly to top-of-rack Arista switches over short multimode fiber runs. This configuration supports high-bandwidth workloads such as virtualization, AI/ML inferencing, and high-throughput storage access.
Spine-Leaf Fabric Interconnects
Arista spine-leaf architectures benefit from the SFP-25G-SR when connecting leaf switches to aggregation or spine layers within the same data center. The 25G throughput per lane reduces port sprawl compared to 10G while staying within typical MMF cabling plant distances.
Storage Area Network (SAN) Connectivity
High-performance SAN environments requiring consistent low-latency and high-bandwidth links can leverage the SFP-25G-SR for NVMe-oF or iSCSI over Ethernet connectivity. Its reliability and DOM diagnostics make it well suited for storage traffic where uptime and observability are critical.
What's Included
✔ 1x Arista SFP-25G-SR 25GBASE-SR SFP28 Optical Transceiver
✔ Dust cap(s) on optical ports
✔ Arista original packaging (New condition)
Lifetime Warranty - No Time Limits. No Questions.
Every WhaleyComm unit ships with a Lifetime Warranty. If it fails under normal operating conditions at any point, we replace it. 25 years, 5,000+ customers.
Compatibility Details
Review supported optics, cables, software, management protocols, and environment-specific compatibility guidance.
✓
The Arista SFP-25G-SR is designed and validated for use with Arista EOS-based switching platforms that support SFP28 25G ports. Compatible switch families include Arista 7050X, 7060X, 7170, 7280, and 7300 series platforms with 25G SFP28 interfaces. It operates under Arista EOS software with full DOM telemetry surfaced through EOS CLI and monitoring integrations such as CloudVision. Use with OM3 or OM4 LC duplex multimode fiber patch cables is required. Compatibility with non-Arista platforms should be verified prior to deployment, as the transceiver is coded for Arista systems.
Shipping & Returns
Clear fulfilment, tracking, return, warranty, and support information for enterprise hardware orders.
Shipping
Orders ship within 1-2 business days.
Returns
Contact support for DOA or warranty issues.
Frequently Asked Questions
Product-specific answers about compatibility, testing, warranty, fulfilment, and purchase confidence.
The SFP-25G-SR requires multimode fiber (MMF) with LC duplex connectors. It supports OM3 fiber up to 70 meters and OM4 fiber up to 100 meters.
Yes, the SFP-25G-SR supports DOM, allowing real-time monitoring of transceiver diagnostics including temperature, supply voltage, transmit power, and receive power through Arista EOS.
This transceiver is factory-coded for Arista platforms and is validated for use within Arista's EOS ecosystem. Compatibility with third-party switches is not guaranteed and should be tested before deployment.
This unit is sold as New, meaning it is factory-fresh, has never been installed or used, and ships in original Arista packaging with full manufacturer quality assurance.
Arista SFP-25G-SR New - 25GBASE-SR SFP28 Transceiver, up to 70m over OM3 MMF or 100m over OM4 MMF
$45.00
Arista
Arista SFP-25G-SR New - 25GBASE-SR SFP28 Transceiver, up to 70m over OM3 MMF or 100m over OM4 MMF
MPN: SFP-25G-SR
$45.00
In Stock — Ships Same Day
