It works as an expansion USB hub for a solar-assistant inverter monitoring platform. 

This device is versatile and can be used in various applications for home, commercial or industrial projects. On our website, we promote this product as a way to expand the USB port for our Solar-Assistant hardware and allow more inverters and other peripherals to be connected to the monitoring platform.

• 4x extended USB ports, switchable two inputs, sharing USB devices for two hosts

• Industrial grade HUB chip, adopting STT technology, allows stable and smooth 4x concurrent USB connections

• ESD protection for each USB port, preventing electric surge damage and data loss

• Over-voltage protection, effectively preventing other high voltage power input from damaging the connected devices

• Multiple protection circuits: over-voltage, over-current, short circuit, over-temperature, reverse current, under voltage lock-out, 8KV ESD protection, filtering protection, etc.

• Industrial grade metal case, rugged & durable, with mounting holes for easy installation

SHARING USB DEVICES FOR TWO HOSTS

Switch the active host by the handy switch at any time, easily control two hosts (say, the computer and Raspberry pi) by the same keyboard and mouse, no more two sets of keyboard and mouse on the table, keeping your working environment neat and tidy.