XFi

XFi, X-Fi or XFI may refer to:


 * Sound Blaster X-Fi, a line of PC sound cards from Creative Technology
 * xFi Advanced Gateway, an Xfinity WiFi router
 * Xfi Centre for Finance and Investment, a research and teaching institute at the University of Exeter
 * XFI, the electrical circuit standard for chip-to-chip connection in an XFP transceiver