Enhance your USB power supply reliability and stability with this advanced USB Power Filter, designed with cutting-edge filter circuit technology and ground common-mode EMI/EMU isolation. Crafted from durable plastic and compatible with USB 2.0 and 3.0 interfaces, this built-in power filter ensures seamless plug-and-play installation for a superior USB power experience. Key Features: · Advanced EMI/EMU Isolation Design: Effectively reduces electromagnetic interference, passing industrial control level EMI tests to protect connected devices and prevent motherboard and electrical equipment interference. · Dual Power Supply Modes: Supports both internal and external power supply modes, automatically detecting and switching between PC SATA power and external power sources without manual intervention. · Automatic Power Monitoring and Switching: Ensures continuous power by automatically switching to built-in power supply when external power voltage drops below 4.8V or is removed, safeguarding connected equipment from power loss or damage. · Multi-Band Ripple Filtering: Utilizes step-by-step power supply filtering across multiple frequency bands to provide high stability and deliver pure, high-power current with ripple less than 1Hz. · Power Dynamic Compensation Technology: Automatically compensates for large power fluctuations, maintaining a constant supply of pure power for sensitive USB devices. · LED Status Indicators: Features green, red, and yellow LED lights to clearly indicate built-in power supply status, external power supply state, and USB signal connection for easy monitoring. · Energy Saving and Device Protection: Automatically disconnects external power supply after PC shutdown to prevent no-load damage and conserve energy, ensuring the longevity of USB audio and other non-signal devices. Specifications: · Item Type: USB Power Filter · Material: Plastic · Interface Type: USB 2.0/3.0 · Installation Method: Built-in · Usage: Plug and Play Package Includes: · 1 x USB Power Filter This USB Power Filter is an essential accessory for anyone seeking to improve USB power quality, protect sensitive devices, and ensure uninterrupted operation in environments with variable power sources. Its intelligent design and robust filtering capabilities make it ideal for use with USB audio devices, external power supplies, and other USB-powered equipment.