The Microsoft 2WJ-00002 Wireless Keyboard 2000 has an Advanced Encryption Standard (AES) feature that secures your confidential information as it encrypts the text as you type. This wireless keyboard comes with shortcut keys, a Windows Start button, along with a Palm Rest to add more typing convenience. Moreover, the Microsoft 2WJ-00002 Wireless Keyboard 2000 works with both Windows and Mac operating systems alike