Sound Blaster X4 - Hi-res 7.1 External USB DAC and Amp Sound Card with Super X-Fi® and SmartComms Kit for PC and Mac - Creative Labs (United States)

Supporting up to 7.1 discrete surround, the Sound Blaster X4's 7 extensive I/O connectors like optical-in and -out ports make it the perfect PC companion.

CREATIVE SOUND BLASTER X4 Hi-Res 24bit/192kHz External USB DAC Amp Sound Card $89.95 - PicClick

Creative Sound Blaster X4 Hi-Res 24bit/192kHz External USB DAC and Amp Sound Card, Super X-Fi, Multi-Channel, 7.1 Discrete Surround, Optical-in

Creative Sound Blaster X4 Hi-Res 24bit/192kHz External USB DAC and Amp Sound Card, Super X-Fi, 7.1 Discrete Surround, - AliExpress

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Creative Sound Blaster X4 Hi-Res 7.1 USB DAC and Amp for PC & Mac - 70SB181500000

Creative Sound Blaster X4 Hi-Res 24bit/192kHz External USB DAC and Amp Sound Card, Super X-Fi, Multi-Channel, 7.1 Discrete Surround, Optical-in, Optical-out, Line-in, Mic-in, Headset-i (70SB181500000)

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Review: Sound Blaster X4 – USB DAC and Amp Sound Card with Super X-Fi – Tech Jio

Sound Blaster X1 Hi-res USB DAC and Headphone Amplifier with Super X-Fi® - Creative Labs (United States)

Review: Sound Blaster X4 – USB DAC and Amp Sound Card with Super X-Fi – Tech Jio

Creative Sound Blaster X4 Hi-Res 24bit/192kHz External USB DAC and Amp Sound Card, Super X-Fi, Multi-Channel, 7.1 Discrete Surround, Optical-in, Optical-out, Line-in, Mic-in, Headset-in for PC and Mac Black

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Sound Blaster X4 - Hi-res 7.1 External USB DAC and Amp Sound Card with Super X-Fi® and SmartComms Kit for PC and Mac - Creative Labs (United States)