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By AudioQuest

AudioQuest USB-A Noise-Stopper

$29.95
$29.95 $29.95
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SKU: CAPUSB
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$29.95
$29.95 $29.95


  • Prevents RFI & EMI Noise: Blocks unwanted radio-frequency and electromagnetic interference from entering unused USB-A ports on audio and AV gear.
  • Protects Open USB-A Ports: Shields exposed USB inputs or outputs from dust, corrosion, and debris, helping preserve long-term device health.
  • Maintains Clean Signal Paths: Reduces potential noise contamination in digital and audio signal chains for improved system clarity.
  • Quick and Secure Fit: Easily presses into any USB-A port—no tools required—for a tight, secure connection.
  • Ideal for HiFi and Home Theater Systems: Perfect for DACs, streamers, media servers, AV receivers, and any device with unused USB-A connectors.