At a glance Expert’s RatingProsExtremely powerful and sensitive sensor4,000Hz polling rate with the booster adapterHas both Wi-Fi and Bluetooth connectivityUltra-light design of just 1.9 ounces (54 grams)ConsOnly one RGB zoneThe dongle and 4,000Hz extension are very bigThe battery life isn’t as long as some esports miceOur VerdictThe Asus ROG Keris II Ace boasts a combination of top-level features and functionality that you’d be hard pressed to find altogether in another FPS mouse. That makes it a dynamo — you’ll get some of the very best performance you’ve ever had in FPS games with this mous…