Direct-attach copper networking cable.

High-speed pluggable optical transceiver format.

High-density double-density QSFP transceiver.

Pluggable transceiver commonly supporting 100-Gbit Ethernet.

High-density pluggable network transceiver.

Higher-speed SFP-family transceiver.

Pluggable network transceiver module.

Mechanical slot holding an SFP module.

Modular connector commonly used for Ethernet.

Transformer used for Ethernet electrical isolation.