Adapter cable HDMI to VGA with 3.5 mm stereo audio, Secomp S3210

The Secomp S3210 adapter cable converts an HDMI video signal to an analog VGA signal and provides a separate 3.5 mm stereo audio output. This passive cable is designed to connect HDMI-equipped sources such as laptops, media players or streaming devices to VGA-only displays, projectors or monitors while routing audio through the included 3.5 mm jack. The compact cable integrates the HDMI male connector, VGA female connector and a standard 3.5 mm audio socket to deliver video and audio connections where the display lacks built-in audio support.

Advantages

This adapter cable offers a simple, single-piece solution for connecting modern HDMI sources to legacy VGA displays without requiring a separate audio extractor. The integrated 3.5 mm stereo output allows you to send sound to external speakers, soundbars or audio inputs on projectors. Its passive design keeps setup straightforward—plug and play with no software or external power needed for compatible devices. The short cable length reduces clutter and is convenient for desktop or portable setups.

Suitable for

• Connecting laptops with HDMI output to VGA monitors or projectors
• Attaching streaming devices or media players to older displays
• Routing audio separately to speakers or sound systems via 3.5 mm jack
• Temporary setups in classrooms, meeting rooms or presentation environments

When it may not be suitable

Because the cable is a passive HDMI-to-VGA adapter, it depends on the HDMI source to provide a compatible signal; not all HDMI devices output analog VGA-compatible signals. It does not perform active signal conversion with scaling or format conversion, and it cannot transmit digital audio over the VGA connector—audio is only available via the separate 3.5 mm jack. For sources that do not support analog VGA output over HDMI or for advanced resolutions and scaling, an active converter with its own power supply may be required.

Key specifications

• Connector types: HDMI (male) to VGA (female) with separate 3.5 mm stereo audio jack
• Function: passive video conversion from HDMI to VGA and separate analog stereo audio output
• Cable length: short inline cable designed for compact setups
• Audio: 3.5 mm stereo connector for external speakers or audio input
• Compatibility: intended for devices that output analog-compatible signals over HDMI

How to use

Connect the HDMI male plug to the HDMI output of your source device. Plug a VGA cable from the adapter's VGA female connector to the VGA input on the monitor or projector. Insert a 3.5 mm audio cable or headphones into the adapter's audio jack to route sound to speakers or the display's audio input. Power on both source and display, then select the VGA input on the display if necessary. Adjust resolution and audio output settings on the source device to match the capabilities of the connected display and external audio device.

What to consider before purchase

• Verify that your HDMI source supports analog VGA-compatible output over the HDMI port
• Confirm the display or projector accepts the VGA input and supports the desired resolution
• Plan for audio routing: the adapter provides a 3.5 mm stereo output but not digital audio over VGA
• For higher resolutions, scaling or devices without analog output support, consider an active HDMI-to-VGA converter

Usage recommendations

Use short, high-quality VGA and audio cables to maintain signal integrity. When connecting laptops, set the output resolution to a mode supported by the VGA display to avoid picture distortion. If the HDMI source does not produce a VGA-compatible signal, use an active powered converter instead of this passive adapter.