A SFP28 Duplex Transceiver is a combination of transmitter and receiver for the transfer of optical signals. The SFP28 Duplex Transceiver uses an electronic to optical converter to translate the signals within the SFP28 Duplex Transceiver. For the transmission, the SFP28 Duplex Transceiver uses LEDs or lasers. The reception of the SFP28 Duplex Transceiver signals takes place via a PIN or an APD detector. SFP28 Duplex Transceivers can be used in various hardware systems, e.g.