The AudioQuest USB-A Noise-Stopper Caps are designed to enhance the performance of your audio system by reducing unwanted noise and interference that can travel through unused USB-A ports. Often overlooked, open input or output connections on audio equipment, computers, or digital devices can act as antennas that invite airborne radio-frequency interference (RFI) and electromagnetic interference (EMI), which in turn can subtly but noticeably degrade audio clarity, imaging, and overall musical detail. By simply covering these unused USB-A ports with AudioQuest’s precisely engineered caps, you create an effective shield that blocks environmental noise from seeping into your signal path, allowing your system to operate in a cleaner, more stable environment. Constructed with high-quality materials and designed to fit snugly into standard USB-A jacks, these caps not only protect your gear from dust and contaminants but also contribute to lowering the noise floor, yielding a more refined and immersive listening experience. Whether you’re using them on a computer-based music server, DAC, or any audio component with USB-A connections, the AudioQuest Noise-Stopper Caps are a simple yet highly effective upgrade for anyone serious about squeezing the most performance out of their system.

- Eliminate Noise from Your System
- Cover all the unused USB-A inputs or outputs in your system
- Keep distortion from getting into your components
- Caps slide right over unused USB-A jacks
- Provides both sonic and environmental protection

- Set of 4

Orders ship Sunday through Friday from our offices in Dubai, UAE.

In-stock products typically ship within 48 hours and should be expected to arrive in 3-4 business days. Orders outside of the UAE should be expected to arrive in 5-7 business days.

Pre-order and backorder products will state the approximate delivery timeline beside the Add To Cart button.

If you would like to place a custom order, chat with our specialists for a guided shopping experience. Once your order has been placed, a timeline will be provided depending on your order details.

- Free delivery within the UAE
- Shipping charges will be calculated upon checkout for orders outside of the UAE (Bahrain, Oman, Kuwait, Saudi Arabia & Qatar).
- Taxes and duties are calculated according to the applicable laws of the state or country an item is shipped to and are the customer's responsibility.

For additional information on shipping and our exchange & return policy visit our help center.

Installation charges are applicable and can be paid upon delivery for our clients based in Dubai.

- Installation Charges: AED 450 Per Hour
- Speaker Cables: AED 32 Per Meter
- Trunking: AED 10 Per Meter

For clients based outside of the UAE, please contact our specialists and we will share an estimate based on your requirements.