Astrotek USB to Serial RS232 DB9 Com Port 9Pin Converter Adapter Cable for POS System Bar Code Scanners Label Printer PDA Modem ISDN Terminal Adapters - USB to Standard 9-pin / DB9 Serial Port - Compliance with USB 1.1 and 2.0 - Supports RS232 Serial Interface(DB9 or DB25) - Supports Remote Wake Up and Power Management - Supports Windows 98/2000/Me/XP/Vista/ Windows 7/8/10 - Cable Length: 45cm Please Note: Make Sure Your Device Is Connected to Internet, Then Plug The 9-Pin to USB Adapter to Your PC And Wait A Moment for Its Online Driver Auto Update Program (around 5 min.)