This is an Industrial Grade USB HUB, Extending 4x USB 2.0 Ports by Waveshare. And it is suitable for industrial/office environments with higher-level device requirements. This USB HUB Provides Multiple protection like Over-Voltage, Over-Current, Short Circuit, Over-Temperature, Reverse Current, Under Voltage Lock-Out, 8KV ESD Protection, Filtering Protection. The industrial Grade hub chip is inserted in this HUB also the chip is made up of MTT Technology.

Useful link:

USB-HUB-4U

Features:

1. 4x extended USB ports, compatible with USB 2.0 / 1.1
2. Industrial grade HUB chip, adopting MTT technology, allows stable and smooth 4x concurrent USB connections
3. ESD protection for each USB port, preventing electric surge damage and data loss
4. Over-voltage protection, effectively preventing other high voltage power input from damaging the connected devices
5. Multiple protection circuits: over-voltage, over-current, short circuit, over-temperature, reverse current, under-voltage lock-out, 8KV ESD protection, filtering protection, etc.
6. LED indicators for monitoring operating statuses of power supply and USB ports
7. Industrial grade metal case, rugged & durable, with mounting holes for easy installation.

Package Includes:

1 x USB-HUB-4U

1 x USB cable ~1.2m