Details: 1. The PCB is designed with a double-layer gold deposition process to good performance in passing large and small currents 2. High quality active crystal oscillator 3. Adopting MCU optimization control scheme to fully optimize USB data chip, resulting in better signal integrity and less signal distortion XU208 USB audio interface (same size as Italian interface) Supported sampling rates: PCM: 16 or 24 or 32 bit 44.1 or 48 or 88.2 or 96 or 176.4 or 192 or 352.8 or 384 KHz DSD: 64 or 128 or 256 Support system: 1. for WIN7, WIN8, WIN10, (requires the driver we provide to be installed) 2. Native MacOS uses the system's built-in driver note: Depending on the batch, the appearance of the electronic components on the board may be different from the picture, but the functions are the same and do not affect use. Material: PCBandelectronic components colour: Green Package Contents: 1 x XU208 USB Digital Interface Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.