Features: The PCM2706 PCM5102A USB sound module delivers outstanding with PCM5102A processing chip, supporting 32 bit data This sound module operates via USB with PCM2706C processor, requiring only 5V USB power supply, eliminating the need for external power sources. Works with various operating systems including older and newer editions and platform, ensuring smooth integration and operational across different devices. Directly connection with headphone, offering a straightforward and efficient sound solution. This elegant sound module features active crystal oscillator, ensuring minimal disturbance and high efficiency in a small form factor. Specifications: Size:Approx.94x50mm/3.7x1.97inch Package Includes: 1Pc Sound Card note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.