3.5 mm USB cable 3MK Jack 3.5 mm 1 pc USB-C to Jack 3.5 mm

The 3MK 3.5 mm USB cable is an adapter cable that converts a USB-C port to a 3.5 mm audio jack, allowing devices without a dedicated headphone output to connect to wired headphones, speakers or other analog audio equipment. The cable is lightweight and portable, with a practical length for everyday use and straightforward plug-and-play operation. It supports standard stereo audio transmission and is intended for basic audio playback and voice communication tasks.

Advantages

This USB-C to 3.5 mm cable provides a simple, cable-only solution for connecting USB-C devices to 3.5 mm audio jacks without requiring additional power or software. Its compact form factor makes it convenient for travel and daily carry. The cable is designed to preserve clear stereo sound and minimize signal loss across the connection, offering reliable performance for typical mobile and desktop audio use.

Suitable for

• Connecting USB-C smartphones, tablets and laptops to wired headphones or earphones
• Using external 3.5 mm speakers with devices that lack a headphone jack
• Voice calls with wired headsets that include a microphone (subject to device compatibility)
• Listening to music, podcasts and other stereo audio from USB-C devices

Key specifications

• Connector type: USB-C (male) to 3.5 mm TRS jack (female)
• Audio channel support: Stereo (left and right channels)
• Design: Lightweight, portable cable with molded connectors
• Usage: Passive cable adapter for analog audio transmission
• Compatibility: Works with devices that support analog audio over USB-C or with digital-to-analog conversion within the host device

How to use

Insert the USB-C plug into the device’s USB-C port and connect your headphones or external speakers to the 3.5 mm jack. Playback should begin automatically through the connected audio device; adjust volume and audio settings on the host device as needed. If the host device requires a software or firmware setting to enable analog audio output via USB-C, consult the device documentation. For headsets with inline microphones, verify that the host device supports microphone input via the adapter.

Recommendations

Keep the cable free from excessive bending or pulling to prolong connector life. For consistent audio quality, avoid using the adapter with incompatible devices that do not provide analog audio over USB-C; in such cases an active DAC or a manufacturer-recommended solution may be required.