GENERAL
The USB HUB is a 4-ports device used to bridge the USB interfaced peripherals to your desktop computers or notebook computers by providing one upstream connector and four downstream ports. The UH400C complies with USB Specification Ver. 1.1. It offers you the flexibility of two data rates. The 12Mbps for devices that require increasing bandwidth and 1.5Mbps for low-speed device like game pads and joysticks. Every single one port of the hub allows to "daisychain" multi devices together. Compact, light-weighted and requiring no external power, this UH400C is the ideal company you can ever find on the road.
FEATURES
Universal Serial Bus Rev. 1.1 Specification compatibility
Plug and Play with USB devices
Easy to add peripherals; allows up to 127 USB devices
Per-port power overcurrent detection and protection for downstream ports
All Downstream ports support full-speed (12Mbps) and low-speed (1.5Mbps) operations
Auto-switching between Bus-power mode and Self- power mode, indicated by LED.
Supports Suspend and Resume Operations.
Supports 1 upstream and 4 downstream USB ports. 
6 LED indicators for hub status at a glance
SPECIFICATION
Ports:
4 downstream ports with USB type A receptacles 
1 upstream port with USB type B receptacle
User LED Indicators:
Bus-powered - green LED
Self-powered - orange LED
4 LEDs indicate presence of individual port power - green LEDs
Environmental:
Operating temperature:0 C to 70 C
Storage temperature:-20 
C to 80 
C 
Humidity: 0 to 95%, non-condensing
Power:
Bus-powered mode: Bus Powered from USB host controller with each port of DC+5V, 100mA supply.
Self-powered mode: Plug mounted A/C adapter with regulated DC 5V, 2.4A with each downstream port of DC +5V, 500mA (Max.) supply
Certifications:
FCC Class B ,CE
