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Introduction 

UIH-420 is a Universal Serial Bus (USB) hub, 
which is an USB cable concentrator and a 
bridge between PC’s PCI interface and USB 
devices. With UIH-420, there is no need to 
concern about IRQ conflicts or system re-
source allocations any more. 

UIH-420 supports USB 2.0 high speed of 
480Mbps and USB 1.1 full speed (12Mbps) 
and low speed (1.5Mbps). Through the four 
type-A downstream ports, up to 127 USB de-
vices can be connected with just plug and play. 
UIH-420 is the ideal way to make use of USB 
2.0 technology. 

 

Package contents   

 

One 4 ports adapter (USB 2.0) 

 

One driver diskette 

 

One User’s Manual 

 

System Requirement 

 

Faster PC’s processor with a free PCI slot. 

 

Windows 98, SE, 2000, Me, XP. 

 

 

 

Features

 

 

 

USB (Universal Serial Bus) 2.0 specifica-

tion compatibility. 

 

 Compatible to all USB 1.1 peripheral de-

vices. 

 

  Supports Intel UHCI (Universal Host Con-

Summary of Contents for UIH-420

Page 1: ......

Page 2: ...ed 12Mbps and low speed 1 5Mbps Through the four type A downstream ports up to 127 USB de vices can be connected with just plug and play UIH 420 is the ideal way to make use of USB 2 0 technology Pack...

Page 3: ...ication Downstream port 4 USB 2 0 series A ports Data rate High speed 480Mbps Full speed 12Mbps Low speed 1 5Mbps Cable length Max 2 08m with 24 28 AWG USB cable Max 5m with 20 28 AWG USB cable Output...

Page 4: ...our computer Please refer to your computer owners manual for instructions on removing the cover 3 Check the height of rear panel for the card with right bracket for your PC 4 Push the host card firmly...

Page 5: ...ed transactions To ensure UIH 420 works well with high speed bandwidth it is a must to install both drivers of UHCI and EHCI completely Install driver in Windows 2000 XP 1 Once UIH 420 physically inst...

Page 6: ...rial Bus Controller Select Search for the suit able driver for my device and click Next 4 You should now see a window to specify the location of the driver Check Floppy disk drives and insert the EHCI...

Page 7: ...found a driver for this device Click Next to continue 6 When Completing the found new hard ware wizard with VIA USB 2 0 Enhanced Host Controller dialog appears on the screen click Finish 7 Restart Win...

Page 8: ...k your Device Manager on the Windows System You should see an entry titled Universal Serial Bus Controller click on the sign for next sub entry should reveal the following added read ings VIA USB 2 0...

Page 9: ...o matically detect and load the drivers for VIA Tech 3038 PCI to USB Universal Host Controller Then the system will prompt you to reboot 2 After system reboot check Device Man ager on the Windows Syst...

Page 10: ...ies page of device will be shown as below Click on Update Driver button 4 The Update Driver Wizard will be shown as below Select Automatic search for a better driver Insert driver diskette into floppy...

Page 11: ...search floppy and install driver automatically Then the screen on next page will appear Ensure that the new device installed is VIA USB 2 0 Enhanced Host Controller Click on Finish button and reboot...

Page 12: ...EM UIH420...

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