Silent Angel is a high-end audio brand founded by Thunder Data Co., Ltd. and based in Shenzhen, China. The company specializes in digital audio components such as music streamers, network switches, and power supplies, designed to enhance the performance of streaming-based hi-fi systems.

Known for applying advanced clocking, EMI reduction, and low-noise design, Silent Angel products aim to deliver cleaner, more detailed sound by improving signal integrity and network stability. The brand is well-regarded among audiophiles seeking high-performance digital playback with refined engineering and build quality.