Professional gaming keyboard LED keyboard backlighting with three colours and customisable intensity 3 profile selector buttons with LED indicator 6 freely programmable macro buttons plus 9 multimedia buttons Progressive Gaming Mode with 3 profiles, 6 macro buttons, swappable WASD and arrow keys plus Windows key deactivation Powerful Macro Editor included in the driver Freely configurable key/button functions Fn key for 16 additional button functions 18-key rollover technology Auto-loading game profiles USB polling rate configurable up to 1,000Hz (ultrapolling) Configurable response time from 1ms Internal profile memory (64kb) for importing/exporting profiles Membrane technology for up to 10 million keystrokes Full-size layout including arrow keys and numpad Flexible USB cable with hardwearing sheathing (1.8m) Dimensions: 506 × 213 × 30mm (W × D × H) Weight: approx. 810g