1.RS 232 to USB adapter, 2.USB connector, 3.serial adapter, 4.Rohs, usb adapter Product Features USB Rev.1.1 compliant Support ... and play & hot swap functions. This adapter is designed for ideal connections to Cellular Phones, Digital Cameras, Modems or ... enable USB interface to be transparent to serial port peripherals with minimum modifications. RS 232 to USB adapter, serial adapter, USB connector