Amazon.com: Audiolab Portable Headphone Amplifier Audio Powered USB DAC Headphone Amp for Phone (Android,USB-C Port) : Electronics
IFI AUDIO UNO USB DAC Headphone Amplifier 32bit 384kHz DSD256 MQA - Audiophonics
FiiO K9 Pro ESS Desktop USB DAC and Headphone K9 PRO ESS B&H
iFi Audio hip-dac2 Portable USB DAC and headphone amplifier at Crutchfield
SMSL DO300EX Balanced MQA Decoder USB DAC & Headphone Amplifier AK4191+AK4499EX XMOS XU316 DSD512 Home Audio Preamp Bluetooth USB DAC Amp(Silver) - Walmart.com
Fosi Audio Q4 Headphone Amplifier Mini Stereo DAC 24-Bit 192 KHz USB for Speaker | eBay
UHA-4 Slimline USB DAC and Headphone Amplifier — Leckerton Audio
Amazon.com: HELM Audio Bolt DAC/AMP, USB-C Portable High-End DAC/Headphone Amplifier with MQA Playback. Mobile Studio Sound for Android, iOS and PC. USB-C to 3.5mm Audio, THX Certified : Electronics
USB DAC Headphone Amplifier | PHA-1A | Sony Liberia