ParameterComparisonValue Device Type equals not equal All N/A Single Dual Quad Description equals not equal All Standalone IrDA Encoder & Decoder High-speed IrDA compliant controller Asynchronous Communications Element Without FIFO Asynchronous Communications Element with Parallel Port And Without FIFO Asynchronous Communications Element with 16-Byte FIFOs Asynchronous Communications Element with 16-Byte FIFOs & Auto Flow Control Asynchronous Communications Element with 16-Byte FIFOs & Parallel Port Asynchronous Communications Element (64-Byte Fifos, Auto Flow Control, Low-Power Modes) Asynchronous Communications Element (64-Byte Fifos, PCMCIA Interface) Asynchronous Communications Element (16-Byte Fifos, Selectable IR & 1284 Modes) Standalone PnP Controller That Supports Two Logical Devices Standalone Plug-and-Play (PnP) Controller Asynchronous Communications Element (16-Byte Fifos, Auto Flow Control, PnP Controller)