Hot swap sockets allow you to customize the feel of your Z15 RGB keyboard with Kailh's 3pin mechanical switches. Featuring Kailh Speed Silver switches with N-key rollover to ensure that you get exactly the type of feedback and experience you want. Powered by a 32-bit Arm Cortex-M33 core USB microprocessor supporting 4,000Hz polling rate.Offering the most advanced gaming keyboard experience, 4K Hz is 4x more responsive and inputs can be more precise. Per key RGB lighting with 14 pre set lighting effects, customizable via the UNLEASH RGB software Volume Scroll Wheel, and Multimedia Keys. Full control at the touch of your fingers Detachable magnetic palm rest