HPE 25Gb SFP28 SR 100m Transceiver

Overview

The HPE 845398-B21 is a 25Gb SFP28 SR transceiver designed to upgrade network connections to 25 Gigabit Ethernet speeds without requiring a full infrastructure overhaul. It supports multimode fiber runs up to 100 meters using a duplex LC interface, making it suitable for high-speed links between top-of-rack switches, spine layers, and server rows. Its compact size and hot-swappable design allow for easy installation and efficient cable management in dense data center environments.

Key features

• Enables 25 Gigabit Ethernet throughput to boost network performance without replacing existing cabling or switches
• Supports multimode fiber connections up to 100 meters, ideal for data center and enterprise network segments
• Hot swappable form factor allows installation or replacement without powering down equipment, minimizing downtime
• Full duplex operation ensures simultaneous sending and receiving of data for efficient communication
• Compact housing reduces space usage and helps maintain airflow in crowded racks
• Lightweight design simplifies handling and keeps cable bundles organized
• Standards-based 25GBase-SR interface guarantees compatibility with other compliant optics across vendors
• Single duplex LC connector reduces cable clutter and streamlines installation

Key specs

• Data rate: 25 Gigabit Ethernet
• Reach: up to 100 meters over OM3 or OM4 multimode fiber
• Connector type: duplex LC
• Form factor: SFP28
• Dimensions: 13.8 mm wide x 55.7 mm long x 11.9 mm high
• Weight: 19.2 grams
• Standard compliance: 25GBase-SR

Connectivity and compatibility

This transceiver fits any device equipped with an SFP28 slot, making it a flexible choice for upgrading existing network hardware. Its adherence to the 25GBase-SR standard ensures it interoperates smoothly with other compliant optics, allowing seamless integration into multi-vendor environments. The duplex LC connector supports common multimode fiber cabling used in data centers and enterprise networks.

Installation and setup

Installation is straightforward and user-friendly. Simply slide the transceiver into an available SFP28 slot and connect the duplex LC fiber cables. The device supports hot swapping, so it can be installed or replaced without shutting down the system, which helps maintain network uptime and reduces maintenance windows.

Ideal uses and environments

This transceiver is well suited to data centers and enterprise networks that require increased bandwidth for virtualized clusters, flash storage arrays, or high-speed server interconnects. Its 100-meter reach over multimode fiber makes it a strong option for linking equipment within the same data hall or adjacent server rows, supporting faster data transfer and reduced backup times.