Cara penggunaan : 1. Instan driver 2. Colokin kabel printer 3. Untuk pindah printer dri pc 1 ke pc 2 tekan CTRL + F11. Jadi ga perlu pencet tombol manual di auto switchnya 1 Plug n Play for Win 98, 2000, XP, VISTA, WIN 7 2. 2 computer share 1 printer parallel. 3. no external power supply required. 4. easily installed operated 5. on line LED indicated for active channel. 6. First come first served parallel auto switch 7. AUTO MODE,LED will keep on flashing alternately. 8. Time out period fixed a 6 seconds 9. PORT DB25 Female