Include the version number in the Question area of your email Software: Select the your Logitech software you have installed from the drop-down list. If there is no service pack option, please write it in the Question area of your email. Operating System: Select your operating system from the drop-down menu. This number is usually found on the bottom of your product, such as 831409-0000 in the case of the Logitech G-7 Gaming Mouse. P/N: The Part Number (P/N) is a ten-digit number, divided into a six and a four-digit section beginning with the numeral '8'.

Depending on the product family the PID or S/N can be between 4 and 11 digits such as LZ547BJ in the case of the G-7 Gaming Mouse. PID or S/N: The PID is used on all current Logitech products and replaces the older serial number (S/N) system.

M/N: The Model Number (M/N) is a code, usually located on the back or bottom of your product, such as M-RBH113 in the case of the Logitech G-7 Gaming Mouse The product name is usually located on the back or bottom of your product, such as 'Logitech Cordless Desktop EX-110' in the case of the Logitech EX-110 Keyboard. Product: Select your product from the drop-down list. The following will show you how to find your product information.