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Arista

Arista SFP-25G-MR-XSR-Arista | 25G SFP28 Transceiver, Multi-Mode, 850nm, 300m, LC

SFP-25G-MR-XSR-Arista

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Description

This dual-rate 25G/10G SFP28 transceiver is part of Arista's 25 Gigabit Ethernet SFP optics range. It is an extended-reach multi-mode module for data centre top-of-rack and leaf server-to-switch 25GbE links, and for 10G-to-25G migrations where longer multi-mode runs are needed.

Operating at 850nm over 50 um multi-mode fibre with an LC duplex connector, it reaches 200m over OM3 and 300m over OM4 at 25G, extending well beyond standard 25GBASE-SR. At 10G the reach increases to 300m over OM3 and 400m over OM4. Transmit power is -6 to 2.4 dBm, receive power is -10.3 to 2.4 dBm, and maximum power consumption is 1.5 W, drawn from the host port.

It fits SFP28 ports on Arista switches and can also run at 10G in SFP+ capable ports, where it interoperates with 10G-SR optics. When linking to legacy fixed-rate 10G optics, attenuation may be required to keep the 10G module's optical input power within limits.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Dual-rate operation at 25G and 10G on a single module
- Extended reach over OM3/OM4 multi-mode fibre compared with standard 25GBASE-SR (70m/100m)
- Interoperates with 10G optics when operated at 10G
- Standard LC duplex multi-mode cabling at 850nm
- Suited to 10G-to-25G migration on existing multi-mode fibre plant
- Part of Arista's broad 25G SFP optics portfolio

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

- PHY type: 25GBASE-MR-XSR (dual rate 25G/10G, extended reach)
- Form factor: SFP28 (SFP)
- Connector: LC duplex
- Wavelength: 850 nm
- Fibre type: 50 um multi-mode (OM3/OM4)
- Modal bandwidth: 2000 MHzkm (OM3) / 4700 MHzkm (OM4)
- Reach at 25G: 200m (OM3) / 300m (OM4)
- Reach at 10G: 300m (OM3) / 400m (OM4)
- Tx power: -6 to 2.4 dBm
- Rx power: -10.3 to 2.4 dBm
- Maximum power consumption: 1.5 W
- Dimensions (H x W x D): 8.55 x 13.7 x 56.5 mm
- Operating case temperature: 0 to 70 C
- Storage temperature: -40 to 70 C
- Relative humidity: 5 to 95%
- Operating altitude: 0 to 10,000 ft
- Standards: SFF-8431, SFF-8461, SFF-8472, GR-20-CORE, GR-326-CORE, GR-1435-CORE

FAQs

Q: What reach does this transceiver support?
A: At 25G it reaches 200m over OM3 and 300m over OM4 multi-mode fibre. At 10G it reaches 300m over OM3 and 400m over OM4.

Q: Which ports does it fit?
A: It fits SFP28 (25G) ports on Arista switches. It can also run at 10G in SFP+ capable ports.

Q: What fibre and connector does it use?
A: It uses 50 um OM3 or OM4 multi-mode duplex fibre with LC connectors at 850nm.

Q: Can it link to 10G-SR optics?
A: Yes, when operated at 10G it interoperates with 10G-SR optics. When linking to legacy fixed-rate 10G optics, attenuation may be required to keep the 10G module's optical input power within limits.

Q: How does it differ from a standard 25GBASE-SR module?
A: It is an extended-reach dual-rate module. It supports 200m over OM3 and 300m over OM4 at 25G, compared with 70m and 100m for standard 25GBASE-SR.

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