Pro-Ject DAC Box S USB -- OPEN BOX - Dedicated Audio
Monoprice Desktop Headphone Amplifier/DAC with power adapter and USB cable | eBay
HiFimeDIY USB DAC 2 (external PSU) Asynchronous - Hifime Audio
Shanling Audio UA2 Portable USB DAC AMP Review: This $85 Dac Amp Combo Has Jaw-Dropping Power and Sound! - HIFI Trends
Amazon.com: Audiolab Portable Headphone Amplifier Audio Powered USB DAC Headphone Amp for Phone (Android,USB-C Port) : Electronics
FiiO USB Type-C DAC and Headphone Amplifier E10K-TC B&H Photo
Decoder Board Module | Voltage Regulators/stabilizers - 5v Mini Pcm2704 Usb Power - Aliexpress
CEntrance USB-Powered DAC/Amp with XLR Outputs DACPORT PRO B&H
Amazon.com: Syba USB 24 Bit 96 KHz DAC Digital to Analog Headphone Amplifier 2 Stage EQ Digital/Coaxial Output and RCA Output (SD-DAC63118) : Industrial & Scientific