Texas Instruments TL062C 30V 1MHz JFET-Input Operational Amplifier SMD IC Monitor Panel Each end of the USB

Each end of the USB extension cable has a male and female connector

The relay switches are electromechanical in nature

The 50MT160  is a Three Phase Bridge Rectifier Diode

The semiconductor device TRIAC is commonly used in power control and switching Applications

refer: Datasheet

Texas Instruments TL062C 30V 1MHz JFET-Input Operational Amplifier SMD IC Monitor Panel Each end of the USBThe TL062C 30V, 1 MHz, JFET input Operational Amplifier is designed as low power versions of the TL08x series amplifiers. They feature high input impedance, wide bandwidth, high slew rate, and low input offset and input bias currents. They feature high input impedance, wide bandwidth, high slew rate, and low input offset and input bias currents. Features Very Low Power Consumption Typical Supply Current: 200 A (Per Amplifier) Wide Common Mode and