Fostex PC-100USB-HR-2 - High Res 24 Bit 96k USB DAC & Volume Controller - Headphone Amplifier - Professional Audio Design, Inc | Professional Audio Design, Inc
Usb Coaxial Audio Converter | Headphone Amplifier Dac Pc | Usb Dac Audio Converter - Usb - Aliexpress
WREA Digital to Analog Converter DAC USB Optical Cable L/R Audio AUX Speaker 3.5mm Jack Adjustable Volume Control Adapter - Walmart.com
Xonar U7 MKII|Sound Cards|ASUS Global
USB DAC 192kHz 24Bit Digital to Analog Converter with Bass Volume Control Coaxial Toslink to Analog Stereo L / R RCA - Free shipping - DealExtreme
Fostex PC-100USB-HR-2 USB DAC Volume Control - Vintage King
PROZOR 192kHz Digital to Analog Audio Converter DAC with Bass + Volume Control Optical to RCA L/R Audio Converter with Optical Cable USB Powered for PS3 PS4 Xbox Blu-ray TV: Amazon.com: Industrial
Premium 192kHz USB DAC With Volume Control Digital Audio Out Headphone Amp | eBay
ES9018K2M XMOS DSD DXD 384kHz USB DAC with Bit-perfect volume control and SPDIF input