Mini-CM108 USB Sound Card External for Laptop No Driver Needed Plug and Play
Price: $7.99
(as of Feb 02, 2026 23:09:07 UTC – Details)
Product description
Product Parameters
Chip CM108AH (Reliable USB audio chip, USB 2.0 compatible) Power DC 5V ±5% (USB bus power, no external supply) Sampling Rate 16-bit/48kHz (CD-quality, THD+N <0.03%) SNR ≥98dB (A-weighted, no background noise) Output Power 2×32mW (32Ω load, supports 16–300Ω headphones) Interface USB-A male (10cm cable, plug-and-play) OS Support Windows XP/7/8/10/11, macOS 10.6+, Linux Size 38×18×8mm (aluminum shell, EMI shielding)
Key Features
Plug-and-play USB audio card with high-fidelity output. No drivers required. Supports 16–300Ω headphones. Suitable for PC/notebook expansion, conference systems, and car audio. Solves built-in sound card issues.
Pin Functions
VCC: 5V power (external supply if current ≥500mA) D+: Data positive (90Ω±10% impedance) D-: Data negative (twisted pair ≤1mm) GND: Low-impedance ground L/R-OUT: 3.5mm stereo output (32Ω, >70dB isolation) GND: Audio ground (isolated from USB-GND)
FAQ Q1: No sound? Check default audio device is “USB Audio Device”. Test headphone impedance (>300Ω needs amp).Q2: Noise during playback? Add 470μF capacitor on USB port. Use 10Ω resistor to isolate ground.Q3: Mic not working? CM108AH only supports output. Disable Microphone Enhancement.Q4: Low volume on high-impedance headphones? Use external amp (e.g., TPA6130). Avoid multiple loads.Q5: Linux locks at 48kHz? Use alsamixer or enable CONFIG_SND_USB_CAIAQ_INPUT in ALSA.
【Plug-and-Play USB Audio Interface】 16-bit resolution; 48kHz sampling rate; 98dB signal-to-noise ratio; no external power required; compatible with Windows XP/7/8/10/11, macOS 10.6+, Linux
【High-Fidelity Headphone Amplifier】 2 × 32mW output power; drives 16 to 300 ohm headphones; 70dB channel isolation; low noise design; Suitable for computer and notebook audio enhancement
【Anti-Interference Design for Stable Performance】 Aluminum alloy shielding; 90-ohm impedance matching; twisted pair data lines; isolated audio ground; reduces electromagnetic interference and ground loop noise
【Easy Integration with Popular Systems】 Supports LabVIEW, MATLAB, STM32; for for for Arduino and for for Raspberry Pi; plug and play without drivers; works with standard USB-A ports
【Wide Settingal Adaptability】 Operates from 0°C to 70°C; stores from -20°C to 85°C; low power consumption under 100mA; suitable for desktop and mobile use in various conditions
