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Two small white USB-A dongles with 3.5 mm TRRS sockets

RCA ST006 USB to 3.5 mm TRRS audio adapter 2-pack white

SKU CH-DNVB-9XEHT

Two USB-A to 3.5 mm TRRS adapters with 24-bit/96 kHz DAC and 20 dB noise reduction for headset audio and mic on Windows, Mac, Linux and Android

  • Typeusb
  • ColorWhite
  • Changer Typetype
  • Specifications1, 96 KHz, 20 decibels, usb, Surround, Personal Computer, Li
  • Connector Ausb
  • Connector Busb
  • Crystal-clear 24-bit/96 KHz audio with enhanced noise reduction
  • Plug-and-play setup with no drivers required for Windows 10/11, Mac OS, Linux, Chrome OS
  • Supports TRRS CTIA/OMTP standards for headphones, microphones and speakers
  • Simultaneous microphone and audio through single 4-pole interface for voice chat
  • Two adapters included to replace damaged ports or equip multiple devices

What it is and who it is for

The RCA ST006 is a USB-A to 3.5 mm TRRS audio adapter sold as a two-pack in white. It adds a combined headphone and microphone jack to laptops, desktops, Macs, Linux machines, Android devices or a PlayStation 4. The plug-and-play design requires no driver installation, making it a quick fix for a broken onboard audio port or a system that lacks a 3.5 mm socket.

The specification that decides fit

The adapter uses a single USB-A male plug and presents one 3.5 mm TRRS female socket that follows the CTIA pinout. It supports 24-bit/96 kHz stereo output and a 20 dB signal-to-noise ratio through its built-in DAC chip. Microphone input and headphone output work simultaneously over this single connection, so headsets with inline mics function for calls, gaming chat or recording.

Capacity and headroom

The 96 kHz sampling rate and 24-bit depth cover high-resolution music playback and clear voice communication without audible noise floor. It draws power from the USB port, so no external supply is needed. The adapter does not work with televisions, car audio systems or iOS microphone input (audio output only on Apple devices), and it cannot split separate headphone and microphone plugs without an additional TRRS-to-dual-TRRS splitter.

Highlights

  • Crystal-clear 24-bit/96 KHz audio with enhanced noise reduction
  • Plug-and-play setup with no drivers required for Windows 10/11, Mac OS, Linux, Chrome OS
  • Supports TRRS CTIA/OMTP standards for headphones, microphones and speakers
  • Simultaneous microphone and audio through single 4-pole interface for voice chat
  • Two adapters included to replace damaged ports or equip multiple devices

Specifications

BrandRCA
Part NumberST006
Typeusb
ColorWhite
Changer Typetype
Specifications1, 96 KHz, 20 decibels, usb, Surround, Personal Computer, Linux, Mac OS X, PlayStation 4, Windows 10, playstation, mac_os_x, linux, android, 2, Standard, red, STSAUX
Connector Ausb
Connector Busb
Connector StyleMale
Features1, usb, 96 KHz, 20 decibels, Surround, false
Dimensions14.33in W x 12.83in H x 9.06in D
Weight0.018 kilograms
Package Quantity2
Package Contents1, 2

Questions about this item

What does the 24-bit / 96 KHz rating mean when I plug headphones in?

The adapter’s DAC converts digital audio to analog at up to 24-bit depth and 96 KHz sample rate, so music and game sound keep more detail than standard CD-quality output.

Which USB standard does the adapter use and what does that limit?

It connects via USB-A and draws power from the port; audio quality is capped by the built-in DAC at 24-bit / 96 KHz rather than by the USB bus itself.

How much space does each dongle need next to the USB port?

Each unit is a compact male USB-A plug with a 3.5 mm TRRS jack; the 2-pack weighs 18 grams total, so it fits alongside other ports without blocking them.

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