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SFP-25G-SR-S
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Cisco 25GBASE-SR SFP28 Transceiver Module, 850 nm Multimode
MPNSFP-25G-SR-S
The Cisco SFP-25G-SR-S is a 25GBASE-SR SFP28 transceiver with a duplex LC connector for 850 nm multimode fiber, reaching 70 m on OM3 and 100 m on OM4/OM5; the host must provide RS-FEC.
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Cisco 25GBASE-SR SFP28 Transceiver Module, 850 nm Multimode
SFP-25G-SR-S · Refurbished · 1 year warranty
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Overview
Server access at 25GbE over multimode fiber is the main use of the Cisco 25GBASE-SR SFP28 Transceiver Module, part number SFP-25G-SR-S. It transmits at 850 nm, uses a duplex LC connector and reaches 70 m on OM3 and 100 m on OM4 or OM5.
One requirement is easy to overlook: the host needs to provide RS-FEC. Forward error correction is applied by the switch or adapter port, so the port must be configured accordingly or the link may not come up cleanly. Check the settings on both ends before you deploy.
The distances suit top-of-rack and end-of-row links. As with any multimode module, measure each run and confirm the fiber grade, since OM3 and OM4 differ.
The form factor is SFP28, the cage type of 25GbE ports. Cisco hosts check the optics they accept, so confirm that your switch supports this part number. The other end of the link needs a compatible short-reach module.
The SFP-25G-SR-S is offered new and refurbished, each with a choice of 1 year or 3 years of warranty. No used offer is listed. Send your quantity and platform to request pricing.
Specifications
| Manufacturer part number | SFP-25G-SR-S |
|---|---|
| Brand | Cisco |
| Media | Multimode fiber |
| Ports | 1 |
| Maximum reach | 70 m |
| Connector | LC |
| Port speed | 25GbE |
| Reach note | 70 m on OM3, 100 m on OM4/OM5; requires RS-FEC on host |
| Form factor | SFP28 |
| Type | Transceiver |
| Wavelength | 850 nm |
Specifications from the manufacturer's datasheet ↗
FAQ
- What reach does the SFP-25G-SR-S support?
- 70 m on OM3 and 100 m on OM4/OM5.
- What does the host need to provide?
- RS-FEC is required on the host.
- What connector and wavelength?
- A duplex LC connector at 850 nm.
- Is a used module offered?
- No. Only new and refurbished are listed.
- What warranty options come with the Cisco SFP-25G-SR-S?
- A choice of 1 year or 3 years.
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