ASUS Xonar U3 Mobile Headphone Amp USB Sound Card

ASUS Xonar U3 Mobile Headphone Amp USB Sound Card

ASUS Xonar U3 Mobile Headphone Amp USB Sound Card

Special Order
Expected availability: 7-14 business days

Product Highlights

  • USB Interface
  • Headphone Amplifier
  • Dolby Home Theater
  • GX2.5 3D Audio Effects
  • Exclusive Hyper Grounding Technology
  • Integrated Blue LED Light
  • USB Extension Cable Included
  • S/PDIF TOSLINK Optical Adapter Included
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Official Rules


NO PURCHASE IS NECESSARY TO ENTER OR WIN. The B&H $500.00 Gift Card Dash (the "Sweepstakes") is void where prohibited by law and is sponsored by B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 ("Sponsor"). It is not sponsored or endorsed by Facebook or Twitter in any way.

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Winner Selection/Prizes/Odds. The B&H Social Team will randomly select a winner from among all eligible entries every Monday during the Entry Period, for a total eight (8) winners (each a "Winner"). Each Winner will receive a B&H Gift Card pre-valued in the amount of $500.00. No cash or other substitutions will be offered. Winner selection is in the sole and absolute discretion of the B&H Social Team. Any taxes are the sole responsibility of the winner. Winners will be notified and receive their prize at the email address associated with the account to which their Entry was posted or the email account provided with a mail-in entry. The odds of winning depend on the number of eligible entries received.

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ASUS U3 overview

  • 1Description

The Xonar U3 Mobile Headphone Amp USB Sound Card from ASUS is a portable headphone amplifier that connects to the USB port of your computer. With a 3.5 mm headphone line-out and a 3.5 mm microphone line-in jack, you'll be able to experience an optimal listening experience. With support for Dolby Home Theater technologies and GX2.5 3D sound effects, you'll be able to enjoy Hi-Fi class audio without having to replace the sound card in your computer. Exclusive Hyper Grounding technology separates audio signals from noise to provide a clean and clear sound. The Xonar U3 also comes with a S/PDIF TOSLINK optical adapter to provide support for digital audio while the USB extension cable makes the Xonar U3 more accessible to computers with crowded USB ports.

Headphone Amplifier
The Xonar U3 is a high-performance headphone amplifier with adjustable gain levels on your headphones or headsets for an optimal listening experience.
Dolby Home Theater
The Xonar U3 is a pocket-sized, portable USB audio card with complete support for a wide variety of Dolby technologies for Hi-Fi surround sound.
With the ability to play up to 128 different sound effects simultaneously, the Xonar U3 provides a realistic 3D listening experience.
Hi-Fi Class Audio
Xonar exclusive hyper-grounding technology separates audio signals from noise to provide clean and clear sound.
Removable Cover
The removable cover is attached to the main body to eliminate the possibility of losing the cover as well as protects the USB connector when not in use.
Split Ring
The split ring allows you to attach the Xonar U3 to your keys or lanyard so you can take it with you while on the go.
Blue LED Light
A blue light indicator illuminates when the Xonar U3 is active.
USB Extension Cable
If the ports on your computer are too crowded, you can use the included USB extension cable.
S/PDIF TOSLINK Optical Adapter
The included S/PDIF TOSLINK optical adapter allows you experience a digital audio output.
UPC: 610839371259
In the Box
ASUS Xonar U3 Mobile Headphone Amp USB Sound Card
  • Extension USB Cable
  • S/PDIF Optical Adapter
  • Driver CD
  • 3-Year Limited Warranty
  • Table of Contents
    • 1Description

    ASUS U3 specs

    Input / Output Connectors 1 x USB
    1 x 1.8" (3.5 mm) microphone line-in jack
    1 x 1.8" (3.5 mm) headphone line-out jack
    Audio Performance Output Signal-to-Noise Ratio (A-Weighted) (Front-out)
    100 dB
    Output THD+N at 1kHz (Front-out)
    0.005 %( dB)
    Frequency Response (-3dB, 16-bit/48 KHz Input)
    20 Hz to 20 KHz
    Output/Input Full-Scale Voltage
    2 Vrms ( Vp-p)
    Chipset Audio Processor
    ASUS UA100 USB Audio Chip
    Sample Rate Analog Playback Sample Rate and Resolution
    48KHz @ 16-bit
    Dimensions 3.12 x 1.20" / 7.95 x 3.06 cm
    Weight Not Specified by Manufacturer
    Packaging Info
    Package Weight 0.7 lb
    Box Dimensions (LxWxH) 6.25 x 6.25 x 2.52"

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