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VAlinks USB 2.0 External Sound Card 6 Channel 5.1 Surround Optical S/PDIF Audio Sound Card Adapter for PC Laptop Recording Compatible with Windows 10/8 / 7/ XP : Amazon.co.uk: Computers & Accessories
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Is it possible to connect 5.1 and 2.1 sound system onto 7.1 sound card on PC to create a 7.1 sound system? | Tom's Guide Forum
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