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HPE

HPE 845398-B21 | 25G SFP28 | 25GBASE-SR | 850nm | 100m (OM4) | LC duplex

SKU:845398-B21

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Description

25G SFP28 short‑reach MMF transceiver for high‑density access and server uplinks. Operates at 850nm with LC duplex connector and supports up to 100 m over OM4 (70 m over OM3). IEEE 802.3by 25GBASE‑SR compliant with digital diagnostics (DDM/DOM) for simplified monitoring. Ideal for top‑of‑rack to server or switch‑to‑switch links in campus and data center networks.

Features

- High-density 25G connectivity in SFP28 footprint
- Short‑reach MMF link for low-cost patching
- DDM/DOM for proactive monitoring
- Hot‑plug for rapid serviceability
- Low power and low latency operation

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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FAQs

Technical Specifications

FAQs

Q: Is this SFP28 SR module backward compatible with 10G SFP+?
A: No. Use a 10GBASE-SR SFP+ module for 10G links.

Q: What fiber and connectors are required?
A: Use OM3 or OM4 multimode fiber with LC duplex connectors.

Q: What is the typical maximum reach?
A: Up to 100 m on OM4 and up to 70 m on OM3.

Q: Does it support digital diagnostics?
A: Yes, it supports DDM/DOM for monitoring transmit power, receive power, temperature, and more.

Technical Specifications

- Data rate: 25 GbE
- Form factor: SFP28
- Fiber type: MMF (OM3/OM4)
- Wavelength: 850 nm
- Connector: LC duplex
- Max reach: 100 m (OM4), 70 m (OM3)
- Standard: IEEE 802.3by 25GBASE-SR, SFP28 MSA
- Digital diagnostics: DDM/DOM
- Hot-swappable, low power

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