Lenovo 25Gbase-SR SFP28 Transceiver

Overview

The Lenovo 7G17A03537 is an optical transceiver designed for 25 Gigabit Ethernet connections using the 25Gbase-SR standard over multimode fiber. It operates at an 850 nm wavelength and supports link distances up to 70 meters on OM3 fiber and 100 meters on OM4 fiber. This module fits into any SFP28-compliant slot, making it a practical choice for data centers and network aggregation layers that require high-throughput short-range connectivity.

Its hot-pluggable design allows for easy installation and replacement without interrupting network services, which is essential for maintaining uptime during upgrades or maintenance. The transceiver uses an LC duplex connector, ensuring compatibility with existing multimode fiber cabling infrastructure.

Key features

• Supports 25 GbE data rates for high-speed network performance over short distances
• Operates with an 850 nm VCSEL laser that ensures efficient optical transmission
• Compatible with OM3 and OM4 multimode fiber, providing flexibility in cabling options
• Hot-swappable SFP28 form factor allows quick replacements without downtime
• LC duplex interface simplifies integration with standard fiber patch panels and cabling
• Designed for server uplinks, top-of-rack switches, and short inter-switch connections
• Reliable performance suited for data center environments and network aggregation layers

Key specs

• Data rate: 25 Gigabit Ethernet (25Gbase-SR)
• Wavelength: 850 nm
• Connector type: LC duplex
• Maximum link length: 70 meters on OM3 fiber
• Maximum link length: 100 meters on OM4 fiber
• Form factor: SFP28
• Compatibility: SFP28-compliant slots and standard Ethernet switch ports

Connectivity and compatibility

This transceiver integrates seamlessly with existing network hardware that supports SFP28 slots, making it a straightforward upgrade for 25 GbE short-range fiber links. Its LC duplex connector is compatible with common multimode fiber patch cables, allowing easy deployment in environments with OM3 or OM4 cabling.

• Fits into SFP28 slots on switches, servers, and network devices
• Works with OM3 and OM4 multimode fiber cabling
• Supports standard LC duplex fiber connectors for simple patching

Ideal uses and environments

This module is well suited for data centers and enterprise networks that require fast, reliable short-range fiber connections. It works effectively for server uplinks to top-of-rack switches, inter-switch links within wiring closets, and lab environments where high bandwidth and low latency are critical. Its hot-swappable design supports environments where minimizing downtime is a priority.

Network administrators looking to scale bandwidth with minimal disruption will find this transceiver a practical and dependable choice for 25 GbE multimode fiber links.