Huawei 34061940 OptiX optical transport equipment Optical Transmission Module

The Huawei 34061940 is an SFP28-25G-1310nm-300m-SM optical transceiver module for Huawei OptiX optical transport equipment. Parts in this range are ordered by their part number rather than by description, because several share a physical format and are told apart only by the number printed on the label. A part of this kind is held as a spare because a failure takes the function it serves out of use until it is replaced, and equipment of this generation is no longer supplied new by the manufacturer. Where a revision is marked, it forms part of the identification rather than being a batch code, because revisions are qualified against particular software releases. Match the part number and revision against the unit you are replacing before ordering. Tech-Star (UK-based, shipped worldwide) supplies Huawei hardware for maintenance and spares holding.