TRENDnet USB to Serial 9-Pin Converter Cable Connect a RS-232 Serial Device to a USB 2.0 Port Supports Windows & Mac: From the manufacturerOverviewUSBSupports USB 1.1 and compatible with USB 2.0 and USB 3.0 ports.RS-232 Serial ConnectorConnect RS-232 serial devices such as modems and network switches using the widely supported USB standard found in most laptops and desktops today.Flexible CableIntegrated flexible 5