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integrated chip: Sound card/network card (4 items)
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USB interface: 8 × USB2.0 interface (4 built-in+4 backplane); 2 × USB3.0 interface (2 backplanes) (1) 6 × USB2.0 interface (2 built-in+4 backplane), 1 × USB3.0 interface (built-in) (1) 8 × USB3.0 interface, 2 × USB2.0 interface (1) 5 × USB2.0 interface (1 built-in+4 backplane); 3 × USB3.0 interface (1 built-in+2 backplane) (1)