Description
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3.5mm TRS Stereo Mini Audio Auxiliary Cable (Premium Shielded)
Product Overview
The 3.5mm Stereo Mini Audio Cable (commonly referred to as a standard TRS Auxiliary or AUX cable) is a high-fidelity interconnect engineered to transmit dual-channel analog audio signals between media players, processing modules, and sound systems. Outfitted with precision-molded 3.5mm ($1/8\text{ inch}$) male plugs on both ends, this cable establishes a direct, low-resistance link that completely eliminates external channel bleed, static pops, and loose physical connections.
Constructed with premium oxygen-free copper (OFC) conductors enclosed in a high-density braided shield, this cable ensures lossless audio transmission across its entire frequency range. It is an indispensable interconnect solution for connecting audio logic modules, patching test bench waveforms, or running auxiliary audio links through enclosure panels.
Key Features
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Universal 3.5mm Auxiliary Interface: Offers seamless drop-in compatibility with commercial media devices, smartphones, mixing boards, and hardware development setups.
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True Stereo TRS Engineering: Utilizes three distinct internal conduction lines corresponding to Tip (Left Channel), Ring (Right Channel), and Sleeve (Ground Shield) to deliver accurate multi-channel separation.
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High-Density Double Shielding: Wrapped in an aluminum foil shield and a high-coverage copper braid to repel external electromagnetic interference (EMI) and radio frequency interference (RFI).
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Molded Strain Relief Boots: Outfitted with flexible, heavy-duty strain relief collars at each connector base, protecting internal solder junctions from pulling stress and sharp wire bends.
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Corrosion-Resistant Gold Plating: Features heavy gold-plated contact pins to ensure maximum signal conductivity, a near-zero noise floor, and long-lasting mating wear cycles.
Technical Specifications
| Parameter | Specification |
| Cable Type | 3.5mm Male-to-Male Stereo Audio Interconnect |
| Connector Configuration | Male 3.5mm TRS Plug to Male 3.5mm TRS Plug |
| Audio Channels | 2-Channel Stereo (Left and Right isolated lines) |
| Pin Structure | TRS (Tip, Ring, Sleeve Layout) |
| Conductor Material | $99.99\%$ Oxygen-Free Copper (OFC) |
| Shielding Layer | Dual-Layer (Al-Foil Wrap + High-Density Copper Braiding) |
| Outer Jacket Material | Highly Flexible PVC or Heavy-Duty Nylon Braided Sleeve |
| Connector Shell | Machined Aluminum Alloy or High-Impact ABS Housing |
| Contact Plating | 24K Gold-Plated or Premium Nickel-Plated |
| Contact Resistance | $\le 0.02\,\Omega$ Max |
| Insulation Resistance | $\ge 50\,\text{M}\Omega$ |
| Available Lengths | 0.5m, 1m, 1.5m, 3m (Variant specific) |
Applications
The go-to audio interconnect for clean signal routing, patch setups, and hardware prototyping grids:
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Microcontroller Audio Output Paths: Seamlessly routing sound signals from Arduino audio shields, Raspberry Pi analog sound nodes, or ESP32 DAC boards out to external speakers and amplifiers.
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Audio Patch Panels & Matrix Arrays: Ideal for linking custom Eurorack synthesizers, audio processing modules, and hardware mixing matrices cleanly.
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Acoustic Waveform Testing: Connecting low-frequency signals or function generators directly into benchtop oscilloscopes, data loggers, and audio analyzers.
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Commercial Auxiliary Inputs: Perfect for linking localized media playback units, communication radios, and audio distribution hubs inside custom enclosure assemblies.

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