Introducing The Xpg Primer Gaming Mouse. Whether You’Re A Veteran That Likes A Simple Mouse With Attitude Or A Novice Looking To Up Your Gaming Prowess, The Xpg Primer Is For You. Sporting Omron Switches With A 20-Million-Clicks Rating, An Optical Sensor With Up To 12000 Dpi, And A Plethora Of Design Touches For Comfort, Accuracy, Durability, And Flair, The Xpg Primer Is Ready To Up Your Game.