TRUST software http://www.downloadtube.com/Drivers/Sound-Cards/TRUST/ Latest TRUST software TRUST Sound Card 514DX SOUND EXPERT OPTICAL Version 2.01.0639 http://www.downloadtube.com/Drivers/Sound-Cards/TRUST-Sound-Card-514DX-SOUND-EXPERT-OPTICAL-Version-2-01-0639-download.html TRUST Sound Card 511 SOUND EXPERT DIGITAL SURROUND Version 2.01.0639 http://www.downloadtube.com/Drivers/Sound-Cards/TRUST-Sound-Card-511-SOUND-EXPERT-DIGITAL-SURROUND-Version-2-01-0639-download.html