This keyboard is a PS/2 Keyboard. The reason that we put the warning on the ad is because some newer Dell systems are not being made with PS/2 ports on them.
Dell (and some other manufacturers) assume that you will be using the keyboard that they provide which is a USB style.
This keyboard is compatible with your computer if you have PS/2 ports on the back of your system. There are usually 2 of them. One for the mouse and one for the keyboard. They are round and are usually colored purple and green.
Here is a listing of the functions of the top buttons on the keyboard. I am listing them from left to right.
1: Refresh your web browser screen.
2: Open favorites on your web browser.
3: Back on your web browser.
4: Forward on your web browser.
5: Stop on your web browser.
6: Go to your home page.
7: Open your email application (outlook express / windows mail)
8: Play/pause on windows media player.
9: Stop on windows media player.
10: Mute.
11: Put computer to sleep.
You will also notice 4 buttons above the arrow keys on the keyboard. These keys control the volume on windows media player and skip tracks on windows media player.
These Keys are not re-programmable.