The TS3USB221RSER is a part manufactured by Texas Instruments and is part of their USB Switch ICs family. It is a Hi-Sp USB 2.0 1:2 Multipl/Demult Sw, which is a high-speed USB 2.0 switch that offers a data rate of up to 480 Mbps. It features one input port, two output ports, and controlled power management of the USB accessories connected to the ports. It is designed to enable peripheral and accessory sharing over a single USB port. It also allows for the connection of up to two accessories over two ports simultaneously, while managing the power use of each device separately. This allows for the integration of USB-enabled peripheral devices, such as external storage devices, controllers, headsets, gamepads, etc., into consumer products with a single USB port.