Used Asus Xonar Essence ST audiophile level soundcard. This is not the more common STX version found on eBay and elsewhere. This is the more powerful version with support for 7.1 audio and direct power draw from mainboard (instead of needing separate power supply like the STX). Check your mainboard to ensure you have PCI slots before buying this, as many newer mainboards do not have space for full-size PCI slots like this card.
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