The SFP system (Small Form-factor Pluggable) is an interface in a popular industry format for multiple protocols. The SFP system supports hot-swapping of fibre-optic and copper cable-based transceivers in the host unit. SFP connections have a data rate of up to 4.25 Gbps and were developed to support Gigabit Ethernet, Fibre Channel and other communication standards. Right-angle SMD connectors with 20 positions and corresponding shielded cage complies with SFC specification.