Advantech BB-UHR204

Four Port Rugged USB Hub

  • 4 kV Isolation (Model UHR304)
  • High Retention USB Connectors
  • Level 4 ESD Protection – 15kV
  • Rugged Metal Case – Panel & DIN Rail Mount
  • Wide Operating Temperature (-40 to 80°C)
  • USB 2.0 – Full Speed (12 Mbps) Model UHR304
  • USB 2.0 – High Speed (480 Mbps) Model UHR204


The BB-UHR304 and BB-UHR204 are Industrial Grade Four Port USB Hubs. They are designed and tested to meet heavy industrial EMC standards and are UL listed for Class 1 Division 2 hazardous locations. High retention USB connectors hold standard USB cables tight and are perfect for high vibration applications – requiring up to 3.2 lbs-force to disconnect them. Model BB-UHR304 has 4 kV Isolation between the upstream and downstream USB ports to protect expensive equipment from dangerous ground loops and to help ensure data integrity.

Part Number Description
BB-UH204 4 Port Industrial USB Hub
BB-UH304 4 Port Industrial USB Hub, Isolated
USB Interface
Standards USB 1.1 & 2.0
Upstream Port (1) Type B Female – High Retention
Downstream Port (4) Type A Female – High Retention
Speed 12 Mbps – Model UHR304
480 Mbps – Model UHR204
Multi-transaction Translator, 1 per port
Isolation 4 kV – Upstream to Downstream Model UHR304
Surge Protection +/- 0.5 kV DC Ports, +/- 1 kV Signal Ports
ESD 15 kV Air, 8 kV Contact
High Retention USB Ports require 15 N (3.2 lbs-force) withdrawal force using standard USB Cable
Source External (Required for Model UHR304)
Model UHR204 may be bus powered.
See Downstream power limitations
Power Connector Terminal Block or threaded barrel jack
Input Voltage 10 to 30 VDC
Power UHR204 – 16 Watts (External Source)
UHR304 – 16 Watts (External Source)
Power TB 3 Position, 5.08 mm spacing, 28-12 AWG, Solid Wire
Barrel Jack Locking / Threaded, 5.5 mm,
Center Positive
Downstream Power 500 mA per port
100 mA per port when bus powered.
Power Green LED (External Power)
Yellow LED (Bus Power)
Port Ready Green LED
Dimensions 13.9 x 8.7 x 3.5 cm (5.5 x 3.5 x 1.4 in)
Enclosure IP 30, Metal
Weight 1.4 lbs (635 g)
MTBF UHR204 211,773 Hours
MTBF UHR304 190,999 Hours
MTBF Calc. Method MIL 217F Parts Count Reliability
Operating Temperature -40 to 80°C
Storage Temperature -40 to 85°C
Operating Humidity 0 to 95% Non-condensing
Approvals / Certifications
Emissions FCC Class B, CISPR Class B (EN55022)
CE EN61000-6-2:2005 (Heavy Industrial)
EN61000-4-2:2008 (ESD) +/- 8kV contact, +/-15 kV air
EN61000-4-3:2006 (RI) 10 V/m, 80-1000 Mhz; 3 V/m 1.3 to 2.7 GHz
EN61000-4-4:2004 (EFT Burst) +/- 2kV DC ports; +/- 1 kV signal ports
EN61000-4-5:2005 (Surge) +/- 2 kV com; +/- 1 kV differential
EN61000-4-6:2008 (CI) 10 Vrms, 0.15 to 80 MHz
EN61000-4-8:2001 (Magnetic) 10 A/m, 50 Hz & 60 Hz
UL Class 1 Division 2 Listed File: E245458

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