text: DCT - GPS/GNS Time Servers - USB Radio Clocks
  Products GPS/GNS Time Servers USB Radio Clocks
  DCF600USB: DCF77 Radio Clock for the Universal Serial Bus (USB)
  The DCF600USB is a DCF77 Radio Clock for USB in compact plastic housing with an integrated DCF77 antenna, an (optional) external antenna can be connected to compensate degraded reception quality. This device is a perfect alternative for synchronizing computer systems where no PCI slot or serial port is available for time synchronization.