Connecting USB (Universal Serial Bus) with the traditional RS-232 serial port, this adapter connects mobile phones, PDAs, digital cameras, modems, or ISDN terminal adapters through your USB (Universal Serial Bus) port. This Adapter Cable has a data transfer rate of over 250 kbps. Since the adapter uses no IRQs, there are no IRQ conflicts, & it is ideal for when you need many serial devices attached to your PC. Use this adapter to connect directly to a serial device or to free your RS-232 port for other uses.\n&162; Download the driver from the Support tab (if applicable)\n&162; Download a PDF with the technical specifications of this product on the Support tab or view the technical specifications of this product on the Specs tab\n\n- Perfect for connecting DB9 devices to a PC without serial ports\n- Available in single, two-port & four-port DB9 to USB (Universal Serial Bus) configurations Feature Feature Value Connector 1USB (Universal Serial Bus)-AConnector 2DB9 Connector gender Male connector / Male connector Cable length 1.5 m Connector contacts plating Gold Product colour Black Weight 118 g