DWDM SFP+ transceivers are designed to transmit and receive optical data over single mode optical fiber. Digital diagnostic functions are available via an I2C. This module is designed for single mode fiber and operates at a nominal wavelength of ITU Grid, C Band DWDM wavelength. It is with the SFP+ 20-pin connector to allow hot plug capability. The transmitter section uses a DWDM EML laser and is a class 1 laser compliant according to International Safety Standard IEC-60825.The receiver section uses a PIN detector and a limiting post-amplifier IC. www.sopofiber.com