Sound Blaster PLAY! 4 - Portable Plug-and-play Hi-res USB DAC with Auto Mute and Two-way Noise Cancellation via SmartComms Kit for Conference Calls - Creative Labs (United States)
Sound Blaster X-Fi HD - USB Audiophile Sound Card - YouTube
Amazon.com: 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 : Electronics
Amazon.com: Creative Sound Blaster X-Fi HD USB Audio System with Phono Preamp : Electronics