Lenovo 7G17A03537 network transceiver module Fiber optic 25000 Mbit/s SFP28 850 nm

The Lenovo 7G17A03537 is an SFP28 fiber optic transceiver module designed for 25 Gbit/s links in data centers and enterprise networks. Operating at an 850 nm wavelength, this compact module supports high-speed short-reach optical connectivity and is built in a metallic housing for mechanical stability and heat dissipation. The module fits standard SFP28 ports and is intended for modern network switches and servers that require 25 Gbit/s optical links.

Advantages

The module provides a 25 Gbit/s maximum data transfer rate suitable for bandwidth‑intensive applications while maintaining a small SFP28 form factor. The metallic enclosure enhances durability and thermal performance in rack environments. Using an 850 nm wavelength enables reliable short‑reach multimode fiber connections with proven interoperability across compatible networking equipment.

Suitable for

• 25 Gbit/s server-to-switch uplinks in data centers
• High-performance aggregation links within enterprise LANs
• Short-reach multimode fiber connections (MMF) in server rooms
• Switch and router ports supporting SFP28 optical modules

Key specifications

• Form factor: SFP28 optical transceiver
• Maximum data rate: 25 000 Mbit/s (25 Gbit/s)
• Operating wavelength: 850 nm (short-reach multimode)
• Housing: metallic enclosure for improved durability and heat dissipation
• Typical use: short-reach fiber connections over multimode fiber

How to use

Insert the SFP28 transceiver into a compatible SFP28 port on a switch, router or network adapter until it clicks into place. Connect appropriate multimode fiber patch cables to the module's optical interface and secure any module latch or retention mechanism. Ensure the host device port is configured for 25 Gbit/s operation and that fiber type and connectors match the module’s short-reach 850 nm requirements. Monitor link status via the host device to confirm successful negotiation and signal integrity.

Recommendations

Use multimode fiber (OM3/OM4 recommended) and maintain proper cable management to minimize bend loss. Verify compatibility with the host device vendor’s transceiver support list and update firmware or port settings if required. Handle the optical interface with care — keep dust caps on when not in use and clean fiber connectors before insertion to ensure optimal performance.