Shure X2u signal adapter that connects an XLR microphone to a USB port on a computer for audio recording, with headphone monitoring, was announced on January 06, 2009.
Type: XLR-USB Signal Adapter
Price: US $99
On sale @ Amazon.
Shure MVi may require the ASIO4ALL driver to emulate ASIO and run on the Ableton Live digital audio workstation (DAW).