Add legacy functionality: the usb to vga adapter lets you connect db9 rs232 serial devices to your device through an available usb port, as though the computer offered a db9m connector.
overcome distance limitations: converting at the usb source overcomes the 15ft. technical limit of usb cables - this usb to rs232 adapter cable allows for a much greater serial db-9 extension cable.
maximum compatibility: simple to install and use, this usb serial adapter is a cost-effective solution that bridges the compatibility gap between modern computers and legacy serial peripherals.