The U1SP-25M USB Serial Adapter provides an external plug-and-play serial
  connection with your computer,let you free up your existing serial port. Users
have the capability to utilixze the adapter with serial port interface in an
easy-to-use environment. The adapter is designed for connections to Cellular
phone,PDA,digital cameras,modems,or ISDN terminal adapters through USB port
with over 1Mbps data transfer rate.
    Installation is easy.Simply plug a serial device into the adapter and plug
the usb port into the computer.NO IRQS are needed so there are no IRQ or Com
port conflic.
 
 
 
  Supports automatic,manual mode
    
   Over 230bps data transfer rate
 
 Supports remote wake-up and power management
 
 96 byte buffer each for upstream and downstream data flow
  
 
   Easy installation
   
  Works with cellular phones,PDA,digital cameras,modems,and ISDN terminal
    adapters
 
Frees your ports for other uses
 
No IRQs need,so no IRQ conflicts
 
  U1SP-25M-TBL