This DualNet starter kit allows four computers to share one parallel printer. DualNet is an expandable printer sharing solution for up to 64 computers with parallel or serial port, share up to 8 printers and extends up to 1200ft using regular phone cord. Package includes (4) EAS248T Transmitter, (1) EAS248R Receiver for Parallel Printer, (1) EAS100 Printer Selector, (4) 25ft RJ11 patch cords, and software driver for Windows/DOS system.