ASUS Xonar U1
Xonar U1 is a small USB Interface Audio Device to improve the sound experience for notebook users.
The Xonar U1 also comes with a complete set of technologies from Dolby Studio to provide users with the best audio experience possible.
The Xonar U1 features eye-catching industrial design, a convenient user interface and total compatibility with both PCs and notebooks. It's an external USB audio device that improves the laptop or PC’s underachieving audio by first eliminating electromagnetic interference (EMI) and noisy DC circuits inside the PC chassis. It then utilizes the high quality DAC (digital to analog convertor) to bring about crisp, clear music or gaming audio in the original flavor that was meant to be heard. The Xonar U1 provides a huge boost to PC gamers by supporting EAX and DirectSound HW acceleration for best gaming experience in Windows VISTA and XP.
The Xonar U1 brings further enjoyment to the user by utilizing the high quality internal DAC for playback of original details of MP3s; and superb output with the built-in high-fidelity headphone amplifier to achieve best listening quality with most stereo headphones (8~150 ohms @ >10mWx2).
The Xonar U1 is capable to convert stereo audio to 5.1 virtual surround sounds and provides comfortable & precise 3D positioning headphone listening experience with any pair of headphones.
With the advanced noise cancelling algorithm, along with the bundled exclusive Array Microphone, the Xonar U1 can suppress ambient noises up to 20 dB - leaving only clear voice for VOIP applications (Skype, MSN, Google, QQ, etc.) or online gaming.
Source: LaptopLogic