The PI3USB4000AZUAEX is a USB switch IC manufactured by Diodes Incorporated. It is a USB 2 switch designed to connect two USB devices or peripherals simultaneously. The IC features two high-speed USB device ports with up to 480Mbps data transfer speeds and low power consumption. It comes with two configurable linear regulators, allowing each external port to operate at a different voltage level. The built-in 2-bit HID interface supports remote control functions such as hot swapping of ports. Additionally, the IC is compliant with the USB 2.0 specification and is capable of supporting multiple operating systems.