USB HD Audio Adapter InLine 33053I 24 Bit 192kHz Digital Coax/Toslink/I2S Converter

The InLine USB HD Audio Adapter 33053I is a compact USB audio converter that uses the C-Media CM6631A USB2.0 audio controller and supports the USB Audio Device Class Definition V2.0. It provides high-definition audio processing up to 192 kHz/24-bit and converts USB audio to digital coaxial, Toslink (optical) and I2S output formats for connection to external DACs and digital inputs.

Advantages

This adapter supports 24-bit/192 kHz audio and is based on the CM6631A controller for reliable USB2.0 audio performance. It offers multiple digital output formats (coaxial, Toslink, I2S) in a compact, portable housing and is designed for low-latency, high-fidelity audio transfer from a computer.

Suitable for

• Connecting a computer to an external DAC via coaxial S/PDIF
• Connecting a computer to an optical/Toslink input on audio equipment
• Supplying digital I2S output to compatible audio devices or development boards
• Use in desktop or portable audio setups requiring high-resolution digital output

Key specifications

• Manufacturer model: InLine 33053I
• Controller: C-Media CM6631A (USB2.0)
• Audio resolution: up to 192 kHz / 24 bit
• Outputs: digital coaxial (S/PDIF), Toslink (optical), I2S
• USB standard: USB Audio Class 2.0 compatible
• MPN: 33053I
• EAN: 4043718204007

How to use

Connect the adapter to a computer USB port; the operating system should recognize it as a USB Audio Class 2.0 device. Select the adapter as the audio output device in the computer’s audio settings. Use the appropriate cable to connect the adapter’s digital coaxial, Toslink, or I2S output to the input of an external DAC, receiver, or audio interface. Ensure the external device is configured to accept the chosen digital input and set the sample rate in the player or system to match the desired 24-bit/192 kHz output.

Recommendations

For best performance, use high-quality coaxial or Toslink cables and set the playback software or system audio sample rate to match the target device. Verify compatibility of the receiving device with I2S if using that interface.