Amazon.com: LiNKFOR USB DAC and Headphone Amplifier, Coaxial/Optical/6.35mm Headphone Output, USB to Coaxial S/PDIF Digital to Analog Converter Comaptible with Windows XP 7 10 and Mac PS4 PS3 : Electronics
Amazon.com: Portable USB DSD 192 KHz / 24bit DAC and Headphone Amplifier – DSD64 DSD128. Use with Smartphones/Digital Audio Players/Tablets/Laptops SD-DAC63057 : Electronics
Amazon.com: FiiO JadeAudio KA1 Headphone Amps Amplifier Tiny USB DAC High Resolution 3.5mm Lossless for Smartphones/PC/Laptops/Players(Type C, Black) : Electronics
NextDrive Spectra Portable USB DAC - The World's Smallest 32-bit DAC Headphone Amp for Truly Mastering Your Sound On-The-Go (Spectra USB Type-A)
Amazon.com: SMSL IQ Portable USB DAC and Headphone Amplifier,HiFi Audio Digital to Analog Converter with Balanced and Unbalanced Headphone Jack Hi-Res 32bit/768kHz DSD512 (Black) : Electronics
Amazon.com: Portable USB DSD 192 KHz / 24bit DAC and Headphone Amplifier – DSD64 DSD128. Use with Smartphones/Digital Audio Players/Tablets/Laptops SD-DAC63057 : Electronics
KGUSS Topping G5 Portable NFCA Headphone Amplifier DAC - USB Tyle C/Bluetooth/AUX Input, 6.35mm Line Out 3.5mm/4.4mm Headphone Out LDAC Hi-Res Audio (Sliver)
Amazon.com: HiFiGo SMSL PO100 PRO Portable USB DAC, Low-Jitter Output Modes Digital Decoder with AK4493S DAC Chip (PO100 Pro) : Industrial & Scientific
Amazon.com: Audiolab Portable Headphone Amplifier Audio Powered USB DAC Headphone Amp for Phone (Android,USB-C Port) : Electronics
Amazon.com: USB C DAC-USB C Headphone Adapter-Portable 32 Bit Headphone Amplifier-Type C to 3.5mm Jack Adapter-Premium Sound Enhancer for Google Pixel 3 4XL Samsung Galaxy S20 Note 10 10+(USB Type C) :
Amazon.com: Geekria SJC01 Portable Headphone Amplifier/DAC/AMP with USB and Type-C Input, 3.5mm Audio Jack Output, Compatible with 384K/32Bit Hi-Res APPL Music Lossless Audio, PC, Laptop, Android Phones : Electronics
Amazon.com: Audiolab Portable Headphone Amplifier Audio Powered USB DAC Headphone Amp for Phone (Android,USB-C Port) : Electronics