The best replacement for usb interface is firewire.

The best alternatives to usb interface are rated as following:

★★★★★	firewire
★	sound card

Your alternative for usb interface is not listed? Suggest!

Speaking about usb interface, one probably shouldn't forget about microcontroller.

Other search terms related to usb interface and their ratings are:

★★★★★	microcontroller
★★★★	8051
★★★	pic
★★★	avr
★★	pic microcontroller
★★	8051 microcontroller
★	fpga
★	atmega

You have in mind a companion for usb interface and it is not yet here? Propose!

Google Trends

Scale is based on the average worldwide traffic of usb interface in all years. Click on graph for more.

usb interface

firewire

sound card