Thesycon Asio Driver -

The US (Universal Serial Bus) specification has an official "USB Audio 3.0" standard, which theoretically offers higher bandwidth and lower power. However, adoption has been slow because Windows does not natively support it well.

Many high-end HiFi DACs (e.g., Topping D90LE, Topping DX3 Pro+) use custom Thesycon ASIO drivers to enable high-resolution playback, supporting up to DSD512 and PCM 32bit/768kHz [5.6, 5.11]. thesycon asio driver