The Microsoft SideWinder X4 Keyboard has all the core must-haves for serious gamers, including industry-leading anti-ghosting, a first-ever Repetitive Macro key, in-game macro recording, a full media key set, automatic and manual mode/profile switching, adjustable backlighting for playing in dim conditions, and more. Plus, at the touch of a button, this customisable keyboard-the latest in the award-winning Microsoft SideWinder line-doubles as a high-performance keyboard for everyday computing.

Advanced anti-ghosting capability--Press up to 26 keys simultaneously without ghosting—what you press is what you get.
Mode switching--Manually toggle from standard mode to one of two gaming modes. LEDs show the mode you select.
Automatic profile switching--The keyboard detects the application you are running and applies your custom profile to the application.
Programmable macro keys--Switch among three banks of six programmable macro keys to assign up to 18 macros per profile.
In-game Macro Record button--Record a sequence of keystrokes. Macros are stored on your hard drive and can be easily shared.
Automatic macro repetition--Set your macros to repeat.
Backlit keys--Adjust key-legend backlighting with three illumination levels plus “off.”
Media keys--Access Play/Pause, Previous Track, Next Track, and Mute.
Volume control

System requirements:

Windows 7/Vista/XP
USB