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Arista

Arista SFP-50G-MR-SR-Arista | 50G SFP56 Dual-Rate Transceiver, 850nm MMF, 100m

SFP-50G-MR-SR-Arista

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Description

The Arista SFP-50G-MR-SR is a dual-rate 50G/25G SFP56 optical transceiver designed for high-performance data center connectivity. Operating at 850nm wavelength over multimode fiber, it delivers reliable short-reach connections up to 100m on OM4 fiber. Ideal for network architects deploying or upgrading to 50GbE infrastructure while maintaining backward compatibility with 25G networks.

Features

Dual-rate operation supporting 50Gbps and 25Gbps data rates
- Hot-pluggable SFP56 form factor for easy installation and replacement
- 850nm VCSEL technology for multimode fiber transmission
- Supports OM3 and OM4 multimode fiber types
- Digital Diagnostic Monitoring (DDM/DOM) for real-time optical performance monitoring
- Low power consumption design for energy-efficient data center operations
- IEEE 802.3cd 50GBASE-SR and 25GBASE-SR compliant
- MSA (Multi-Source Agreement) form factor compliant
- Duplex LC connector interface
- Commercial temperature range operation (0°C to 70°C)
- Backward compatible with 25G networks for flexible deployment
- Short-reach connectivity optimized for intra-rack and top-of-rack applications

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: SFP56
- Data Rate: 50Gbps and 25Gbps (dual-rate)
- Wavelength: 850nm VCSEL
- Fiber Type: Multimode (MMF)
- Connector Type: Duplex LC
- Maximum Distance: 70m over OM3, 100m over OM4 MMF at 50G
- Maximum Distance at 25G: 300m over OM3, 400m over OM4 MMF
- Digital Diagnostic Monitoring: DDM/DOM supported
- Power Consumption: <2.5W typical
- Compliance: IEEE 802.3cd 50GBASE-SR, MSA compliant
- Operating Temperature: 0°C to 70°C (commercial)
- Hot-pluggable: Yes

FAQs

Q: Is this transceiver backward compatible with 25G networks?
A: Yes, the SFP-50G-MR-SR is a dual-rate transceiver that can operate at both 50Gbps and 25Gbps, providing flexibility for network migration and mixed-speed environments. It can interoperate with standard 25GBASE-SR optics when operating at 25G.

Q: What fiber type is required for this transceiver?
A: This transceiver uses multimode fiber (MMF) with duplex LC connectors. It supports OM3 and OM4 fiber grades, with optimal performance on OM4 fiber achieving up to 100m reach at 50G and 400m at 25G.

Q: Can this transceiver be used in standard SFP28 ports?
A: This is an SFP56 transceiver designed for 50G-capable ports. While physically compatible with SFP28 ports, it requires 50G SFP or 50G-capable SFP-DD/DSFP ports to operate at the full 50Gbps data rate. Check your switch platform compatibility before deployment.

Q: Does this module support Digital Diagnostic Monitoring?
A: Yes, the transceiver includes DDM/DOM functionality, allowing real-time monitoring of key parameters including optical transmit and receive power, temperature, laser bias current, and supply voltage for proactive network management.

Q: What platforms support this 50G transceiver?
A: This transceiver is designed for Arista switches with native 50G SFP ports or 100G SFP-DD/DSFP ports operating in 50G mode. Refer to Arista's official transceiver compatibility guide for specific platform support and minimum EOS version requirements.

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