Steelseries Guild Wars 2 Gaming Mouse. Device interface: USB, Movement detection technology: Laser, Purpose: gaming. Power source: cable. Processor clock speed: 1500 MHz, Minimum hard disk space: 300 MB, Minimum RAM: 1024 MB. Mouse weight: 90 g. Compatible operating systems: Microsoft Windows 2000, Windows XP, Windows Vista, Windows 7, Mac OS X, Depth: 68.3 mm, Height: 38.7 mm