The 40G QSFP+ BIDI (Bi-Directional) optical transceiver is a high-performance solution designed for 40 Gigabit Ethernet (40GbE) applications, leveraging advanced WDM (Wavelength Division Multiplexing) technology to enable bidirectional data transmission over a single fiber strand. The operating temperature range of the 40G QSFP+ BIDI module is 0°C to 70°C.