4-Port USB Hub with Metal Case and Optical Isolation

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TITAN’s HUB-400i-ISO is a robust, industrial-grade 4-port full speed isolated USB2.0 hub. HUB-400i-ISO expands one USB port into four optically isolated USB ports with high-voltage 3kV isolation both upstream and downstream to protect the host computer and expensive USB equipment that are connected to it. This industrial USB isolated hub is designed to build protective isolation barriers to the power and USB signals between a host computer and any connected USB devices. Both the computer and the connected USB device are protected from harmful voltage, power surges, transient voltage spikes, ESD shock, EMI/RFI interferences and noise that may cause damage and inaccurate measurements. The isolated hub is very efficient and secured to eliminate ground loop currents and protect against overvoltage.


  • Expands one USB port into four optically isolated USB ports
  • Electrical isolation up to 3000  both upstream and downstream
  • Common mode filtering on all data lines
  • Each port provides 5V 500mA power to downstream device
  • Supports USB2.0 full speed 12Mbps and USB1.1 low speed 1.5Mbps data rate with jumper-selection
  • No software or drivers required
  • Short circuit protection
  • LEDs for power and USB status indication
  • Wide ambient temperature operation from 0°C to 60°C (32°F to 140°F)
  • 9 to 30VDC or AC power input (an external power adapter is included)
  • Diode bridge circuit avoids wrong polarity input of DC power
  • Individual port power management
  • Overcurrent protection
  • Robust metal case suitable for DIN rail mounting
  • All USB connectors have screw holes to secure USB cables
  • Input power connector has screw holes to lock the power cable
  • CE, FCC approval


PortsDownstreamFour isolated
Port StatusFour
Power ModeSelf-power mode
Output Voltage (per port)+5VDC
Output Current(per port)500mA maximum
Operating Temperature0°C to 60°C
Storage Temperature-40°C to 85°C
Humidity0 to 80% RH. noncondensing
Safety ApprovalsCE, FCC
HousingRobust metal case
Dimensions85mm × 137mm × 24mm (W × L × H)
85mm × 159mm × 24mm (W × L × H) with DIN rail ears
Input Power Range+9V to 30V VDC or AC


Product Manual