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USB-HUB-3U-ETH User Guide


  • 3 x extended USB ports, compatible with USB 2.0 / 1.1 transmission.
  • 3-U high-speed USB port, up to 480Mbps.
  • Onboard 1-Ch RTL8152B Ethernet chip, 100M network transmission.
  • Industrial grade HUB chip.
  • 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.
  • LED indicators for monitoring operating statuses of power supply, network port, and USB ports.
  • Industrial grade metal case, rugged & durable, with mounting holes for easy installation.

Hardware Connection

  • Only supports 5V, and it will automatically power off when the voltage is too high.
  • Three USB output transmission ports and its maximum output current is 1.2A. If you exceed this limit, the short-circuit protection will be triggered, which requires the removal of the device to restore.
  • One RJ45 Ethernet port: its orange indicator will flash when connecting to the network normally, the green one and the LINK LED will be always on.
  • LED1-LED3 indicates the enumerable situation of each USB. If there is one USB is connected and enumerated successfully, the corresponding LED will be on.
  • The red PWR LED indicates it is powered on.
  • The operating temperature: -40 ℃~85 ℃. Note that there is no condensation, and this module is not waterproof.