U1ENR-BG is a compact, single-port serial device.It designed to instantly convert data from
  USB interfaces to a 3Mbps Ethernet network running at the TCP/IP protocol.U1ENR-BG
  provides data format auto detecting and auto switching to Rj45 This USB Ethernet Adapter is
  the easiest solution for connecting your laptop and/or desktop computers to a broadband
  Internet modem, or building a 10/100 Base-T Ethernet network. Just plug the adapter into any
  available USB port and let you connect your PC to a cable or DSL modem, as well as share
  files and peripherals with computers that are connected to the network.
   
 
  USB V1.1 compliance
    
   Standards:IEEE 802.3 10BaseT and 802.3U 100BaseTX
   
   Data Rate:10Mbps or 100Mbps,Half/Full Duplex
      Auto-Negotiation
   
  LED:10/100Mbps,Link/Activity
   
  Compact designed
   
  Cable Length : 20 cm
   
  Easy plug & play
   
  Supports Windows/Linux O.S.
   
  U1ENR-BG