PL2305 USB to Printer Bridge Controller. Full compliance with the Universal Serial Bus Specification Version 1.1. Full compliance with the Universal Serial Bus Device Class Definition for Printing Devices Version 1.0. Full compliance with Nibble mode and Compatible mode defined in the IEEE std 1284-1994 – “IEEE Standard Signaling Method for a Bi-directional Parallel Peripheral Interface for Personal Computers”. On chip transceivers and regulator for USB interface. Fully automatic high speed bi-directional communication over parallel port. 512 Bytes unified data buffer dynamically allocated for upstream and downstream data transfer.