The XFP interconnect system is capable of a 10 Gbps data rate and is intended for external I/O connections. High speed serial interconnect applications include clusters, servers, and storage devices. Its single row cage configuration requires less space and is a lower cost alternative to parallel-optics VSR. XFP also requires less than one-third the power and physical space of an MSA interconnect with parallel interface. It has a single footprint for all links, and is hot-pluggable.