The 3.5mm pass-through jack is a versatile feature for modern devices, letting you listen to audio while charging or expanding connectivity. This guide highlights five reliable options that combine 3.5mm audio with data, charging, and video passthrough capabilities. Each product is selected for compatibility with common devices like iPads, laptops, and smartphones, offering clear audio quality and practical design. Read on to compare key specs, connectivity, and use cases to choose the best fit for your setup.
| Product | Brand | Key Benefit |
|---|---|---|
| USB C HUB with 3.5mm Audio Jack (9-in-1) | BKELHS | HDMI 4K, 100W PD pass-through |
| StarTech USB-C Audio & Charge Adapter | StarTech.com | 3.5mm TRRS audio + 60W PD passthrough |
| Koss KUSB-50 Analog Audio Pass Through Cord | Koss | USB-C to 3.5mm with premium audio |
| NXPGKEA 9-in-1 USB-C Hub | NXPGKEA | 4K HDMI, 100W PD, SD/TF, 3.5mm jack |
| Seulliya 2-in-1 Charging & Audio Adapter | Seulliya | Lightning to 3.5mm + charging |
The following sections detail five top picks, each offering reliable 3.5mm pass-through or integrated audio solutions to fit different devices and workflows. All product headings include a direct Amazon link for quick access.
BKELHS 9-in-1 USB C Dock for iPad Pro and More
This BKELHS hub expands a single USB-C port into a full 9-port array, including HDMI at 4K@60Hz, a USB-C Power Delivery port, a dedicated 3.5mm audio jack, USB-A ports, and SD/microSD card readers. It enables pass-through charging up to 100W when connected to a compatible power adapter, allowing simultaneous charging and operation of connected devices without sacrificing performance. The HDMI output supports high-resolution video, making it suitable for presentations, media playback, and productivity tasks on iPad Pro and compatible devices.
Key features include: HDMI 4K@60Hz, USB-C PD pass-through, multiple USB 3.0 ports, SD/microSD reader, and a 3.5mm audio jack for headphones or headsets. This model is designed for users who need a comprehensive dock for travel or desktop use with Apple and USB-C devices.
Koss KUSB-50 Analog Audio Pass Through Cord
The KUSB-50 provides a straightforward wired audio path through a USB-C connection to compatibly drive 3.5mm headphones or headsets. It emphasizes reliable analog audio pass-through without requiring charging, making it ideal for users who prioritize uninterrupted audio while connecting to devices lacking native 3.5mm ports. The product is designed for compatibility with a range of tablets, laptops, and gaming devices that feature USB-C with a standard 3.5mm jack on the device being connected.
Highlights include solid compatibility with KPH30 and Porta Pro wireless models when used with their USB-C devices, in-line microphone compatibility, and a focus on delivering high-fidelity sound through a simple USB-C to 3.5mm adapter design.
Seulliya 2-in-1 Charging & Audio Adapter
The Seulliya adapter combines Power Delivery charging with a dedicated 3.5mm headphone output for iPhone users. It is MFi certified, ensuring compatibility with iPhone models that use Lightning. The DAC-based design supports high-fidelity audio with up to 24-bit/48kHz lossless output, enabling stable playback even while charging. The device supports pass-through charging while maintaining control of media playback and connectivity on supported Apple devices.
Considerations include certified compatibility, the need for a sufficient 20W+ charger to maximize charging speed, and audio performance when delivering music, movies, and games through wired headphones.
StarTech USB C Audio & Charge Adapter
This StarTech adapter adds a 3.5mm TRRS audio jack while delivering up to 60W Power Delivery pass-through. The compact, dongle-like design places audio and power connections at opposite ends, reducing snag risk. It supports DAC output for high-resolution audio and is suitable for USB-C devices needing both audio and reliable charging in one slim adapter. It is particularly useful for users who need to connect headsets with microphones and charge their device at the same time.
Buyers can expect a convenient side-port layout, enabling flexible setups on laptops, tablets, and smartphones that support USB-C PD charging and audio pass-through.
NXPGKEA 9-in-1 USB-C Hub for iPad Pro and More
This NXPGKEA hub offers a 9-port expansion for iPad Pro and other USB-C devices, including 4K HDMI at 60Hz, a 100W USB-C PD port for charge-through, USB-A data ports, a USB-C data port, and an integrated 3.5mm headphone jack. It supports mirror or extended displays via HDMI at 4K@60Hz or 2K@60Hz/1080p@60Hz for alternate resolutions. The design focuses on providing a robust travel-ready solution with a complete set of input/output options to maximize productivity and media playback on compatible devices.
Users should consider whether they need full 100W charging support, SD/TF card access, and whether the HDMI output resolution aligns with their display requirements.
Buying Guide: Key 3.5mm Pass-Through Jack Considerations
- Device compatibility: Check whether the hub or adapter supports your host device (iPad, MacBook, Windows laptop, or smartphone) and whether you need Lightning or USB-C connectivity.
- Audio quality: Prefer adapters with a dedicated DAC or high-quality analog pass-through if you plan to listen to high-fidelity music or use a headset with a microphone.
- Charging needs: Determine your charging requirements. If pass-through charging is essential, look for devices rated for higher wattage (60W, 100W) to avoid slow charging during use.
- Video and data passthrough: If you plan to mirror or extend displays, ensure HDMI supports the needed resolution (4K@60Hz is common) and that data ports (USB-A, SD/TF) meet your peripheral needs.
- Port layout and portability: Consider the physical design—dongle-style adapters are compact but may require careful cable management to prevent snagging.
- Durability and build: Look for sturdy housings and reliable connector interfaces, especially for travel use or frequent plugging/unplugging.
- Future-proofing: If you anticipate newer devices, select hubs with broad compatibility (PD 3.0/USB-C PD, USB 3.0, SD/TF readers) to maximize versatility over time.