Trust Toetsenbord Easy scroll. Device interface: PS/2. Keyboard dimensions (WxDxH): 504 x 230 x 45 mm, Keyboard weight: 1.2 kg. Minimum processor: Pentium CPU, Processor clock speed: 133 MHz, Minimum RAM: 32 MB. Compatibility: PC, Minimum system requirements: PS/2 keyboard connection CD-ROM drive PC supporting ACPI for use power management keys , Pointing device: Special scroll wheel for convenient document and internet scrolling