The IBM BNT SFP+ SR Transceiver (46C3449-RFB) is an optical module for short-range fiber links in IBM storage and SAN environments. Its SFP+ form factor fits networking equipment designed for this module type.
The SR designation identifies it as a short-range transceiver. It uses LC connectors with multimode fiber, providing a fiber link for compatible IBM networking equipment. The listing also associates this item with OEM reference 99001145.