Cadyce CA-U36P USB to Parallel Bidirectional Cable (White) Cadyce USB to parallel IEEE-1284 36 pin printer cable is used to connect a printer to a USB port on a PC. Connects a desktop or laptop computer with on-board USB to a parallel interface printer. The USB interface provides a much faster data transfer rate than a standard parallel port, thereby reducing the time waiting for a print job to be sent to your printer. This cable adapter is only compatible with 36-pin parallel ports.