Outstanding performance. The Zyxel CSFP-BX1310-40-D compatible 1000BASE-2BX-U cSFP transceiver with LC duplex connector meets the MSA standards of the BlueOptics brand. The transceiver features a receiving function (receiver with 1310nm) and a transmitting function (transmitter with 1490nm) for transmitting optical signals via single-mode fiber, taking into account the respective transmission protocol. This cSFP is suitable for use in all common hardware platforms, such as switches, routers, storage systems, load balancers, and measurement devices that officially support the original Zyxel CSFP-BX1310-40-D 1000BASE-2BX-U LC duplex cSFP. Each transceiver supports Ethernet, Fibre Channel over Ethernet, or SDH/SONET high-speed applications of up to 1.25G per second. Compatibility and quality ensure 100% compatibility.