Good day. I have a BNIB ASUS D2X sound card. The box has never been open, the card has never been used. This item is dead stock. It was, and still is, one of most capable, popular sound cards produced. The boxes are a little disheveled, but the seals are all intact and the contents are fine. Please check my feedback and tenure (15+ year member) and purchase with confidence. Thank you for looking.

Master Piece Audio Card for Home Theater & Gaming in your PCI Express Slot
Asus Xonar D2X is the world's first PCI-E interface high end audio card featuring SNR up to 118dB. Xonar D2 provides intuitive DS3D GX to solve gaming audio issues, and Acoustic Echo Cancellation (AEC) for best voice communication quality, the Xonar D2X will undoubtedly provide the best gaming experience ever.

ASUS Xonar D2X
The ASUS Xonar family of audio cards utilizes an ASUS exclusive technology - the new DS3D GX extension in the Xonar D2X driver; to provide full support for surround sound and hardware accelerated features by translating DirectX to the DS3D GX. While other solutions like OpenAL requires special installation and game support, DS3D GX doesn't. Gamers can enjoy DirectX gaming with hardware enhanced surround sound and EAX effects automatically and immediately after installation.

Cleanest Voice in Online or LAN Game Chatting
The Xonar D2X also includes the innovative "Acoustics Echo Cancellation" (AEC) technology to facilitate the best online voice communication quality. AEC can eliminate up-to-40dB speaker echo return and suppress noises that would otherwise enter the users' microphone - making the Xonar D2X the best audio card choice for online chatting in VOIP applications (Skype, MSN, Google, QQ, etc.) or online gaming.

Unparalleled Sound Clarity
The ASUS Xonar D2X also features a signal- to-noise ratio (SNR) of 118 dB for both audio in and out - reaching the maximum limit of audio quality on most PC platforms. Unlike generic audio cards in the market that provide the highest SNR to only the front stereo outputs, the Xonar D2X is able to deliver 118 dB quality audio for all 7.1 channels.

Dolby and DTS for Complete Digital Home Experience
Besides delivering impressive audio quality, the Xonar D2X is also packed with multiple sound technologies from Dolby and DTS to deliver outstanding entertainment experiences. These include:
Dolby Digital Live: Converts PC or game audio content into Dolby Digital in real-time
Dolby Headphone: Creates a surround sound listening experience when using any set of headphones
Dolby Virtual Speaker: Delivers a vibrant surround sound listening experience from stereo speakers
Dolby Pro Logic® IIx: C reates up to 7.1-channel surround sounds from stereo or 5.1 sources
DTS Connect: Includes DTS Interactive and DTS NEO:PC
DTS Interactive for real time AC-3 encoding and
DTS NEO: PC stereo to multi-channel expander