ES9018K2M XMOS DSD DXD 384kHz USB DAC with Bit-perfect volume control and SPDIF input
PC-100USB : Volume Controller
GitHub - TobiasVanDyk/Teensy4-USB-Audio-DAC-and-Volume-Control: 2020: Teensy 4.x as Audio USB to PCM5102 and ES9023 Audio DACs, with a USB Volume Control with an SSD1306 OLED peak meter. It requires changes to the Teensy
CEntrance DACport Pro USB DAC, Headphone Amp, and Monitor Controller - Exclusive Synth and Software Review - Synth and Software
Dual Mono ES9018K2M XMOS DSD DXD 2x384khz USB Audio DAC with Bit-perfect volume control
Sound Blaster X4 - Hi-res 7.1 External USB DAC and Amp Sound Card with Super X-Fi® and SmartComms Kit for PC and Mac - Creative Labs (United States)
Creative Sound Blaster G3 USB-C External Gaming USB DAC and Amp for PS4, Nintendo Switch, Ft. GameVoice Mix (Audio Balance for Game/Chat), Mic/Vol Control and Mobile App Control, Plug-and-Play - Walmart.com
USB-DAC PCM2704 no volume control with MPD
Fostex PC-100USB-HR-2 USB DAC Volume Control - Vintage King
Amazon.com: HiBy FC3 MQA dongle USB DAC Replaceable Cable Volume Button Supports DSD PCM Plug and Play for iPhone/MAC/Android/Windows : Electronics
USB DAC 192kHz 24Bit Digital to Analog Converter with Bass&Volume Control Coaxial Toslink to Analog Stereo L/R RCA 3.5 MM Jack - AliExpress
AMP Desktop USB DAC Headphone Amplifier With Volume Control - Walmart.com
XMOS DSD 192kHz USB DAC with Bit-perfect volume control CS4398
UHA760 USB DAC/Amp with Digital Volume Control and Crossfeed — Leckerton Audio
5 Best USB Volume Control Knobs for Audio Adjustment - YouTube
FiiO KA5 USB DAC Headphone Amp dongle Volume Control PCM 768kHz DSD 25 – Red Ape Headphone Store
3.5mm Jack Volume Controller Knob for PC Speaker /Gaming Mini Audio Splitter Box | eBay
Fostex PC-100USB-HR-2 USB DAC Volume Control - Vintage King
Volume Control Technologies - Benchmark Media Systems
FiiO KA5 USB DAC Headphone Amp dongle Volume Control PCM 768kHz DSD 256 Headphone Outputs 3.5mm/4.4mm for Android/iOS/Mac/Windows - Walmart.com
LiNKFOR USB DAC and Headphone Amplifier – LiNKFOR Store