SFP module Cudy SM100GSB-3AB 1000 Mbps 850 nm multimode, 1.25 Gigabit Ethernet, up to 3000 m

Cudy SM100GSB-3AB is an SFP optical transceiver designed for 1.25 Gigabit Ethernet links. It supports a data rate of 1000 Mbps over multimode fibre using an 850 nm wavelength and comes in a silver metal housing. The module fits standard SFP slots and is intended for short- to medium-distance network uplinks, switches and servers.

Advantages

The transceiver provides a compact SFP form factor for easy hot-plug installation into compatible network equipment. With 1.25 Gigabit Ethernet support and a maximum transfer distance of up to 3000 m on multimode fibre, it enables flexible deployment for uplinks and server connections. The silver housing offers robust mechanical protection and compatibility with industry-standard SFP interfaces.

Suitable for

• Network uplinks between switches and aggregation points
• Server-to-switch connections in data closets and racks
• Short- to medium-distance multimode fibre links within buildings or campus networks

Key specifications

• Data rate: 1.25 Gigabit Ethernet (1000 Mbps)
• Wavelength: 850 nm (multimode fibre)
• Maximum transfer distance: up to 3000 m
• Form factor: SFP optical transceiver
• Housing colour: silver

How to use

Insert the SFP module into a compatible SFP slot on a switch, router or server until it clicks into place, then connect the multimode fibre patch cable with the appropriate connector. Ensure the host device supports 1.25 Gigabit SFP transceivers and configure link settings on the network equipment as required. For removal, disengage any retention latch and pull the module straight out.

Recommendations

Use multimode OMx fibre and matching duplex patch cables rated for 850 nm to achieve the specified reach. Verify compatibility with the host device and test link status after installation. Avoid excessive bending of the fibre and handle the transceiver by the housing to prevent contamination of the optical interface.