ASUS Launches Xonar Essence STU USB DAC
 

One of the stalwarts of ASUS' audio program has been the Xonar Essence ST/STX sound cards - these are sound cards with a multi-year development cycle to ensure compatibility, usability and getting exactly down to the nitty-gritty of what a user requires. On the back of the success of the Xonar Essence range, ASUS are launching the Xonar Essence STU device - a USB digital to analog converter and headphone amplifier, based on the Xonar Essence ST/STX design.

http://www.anandtech.com/show/7441/a...ce-stu-usb-dac