fiber-transceivers

Fiber Optic Transceiver Module is a self-contained component that can both transmit and receive. Usually, it is inserted in devices such as routers or network interface cards which provide one or more transceiver module slot (e.g QSFP+, QSFP-DD, QSFP28, SFP28, SFP, XFP)

https://www.fiber-mart.com/fib....er-transceivers-c-1.