Asus Xonar Essence

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  • Asus Essence STX II 7.1 124dB TCXO 7.1 PCI-e Sound Card (ESTX II 7.1)
    $589.00
  • Asus ESTX-II Sound Card 7.1-channel Hi-Fi Headphone Amplifier TCXO Clock Source - ESTX II 7.1
    $731.41