SerDes
Serializer/Deserializer (SerDes) converts between parallel and serial data.
SerDes uses differential pairs. On FPGAs, SerDes typically operates from 1,25 to 5 GHz. Serdes may be exposed on the external pins, or it may be used as part of a more complex protocol such as USB or MIPI. GateMate and the Lattice NX33 are low cost FPGAs with exposed SerDes.