
The SFP-25G-BX-U-40-I is a 25 Gigabit Ethernet (25GbE) Bi-Directional (BiDi) SFP28 transceiver designed for high-speed data transmission over single-mode fiber. It supports distances up to 40 kilometers, using a single fiber strand for both transmit and receive functions, thus reducing cabling infrastructure. The “BX-U” designation indicates the transmit wavelength, and the “I” suggests it’s designed for industrial temperature ranges, making it suitable for harsh environments. This module is commonly used in data centers and telecommunications networks to establish efficient and long-range connections.