Lenovo Legion Mechanical Gaming Keyboard, for Lenovo Legion Y720, Y520, Y530 Gaming Laptops, GX30K04088 Mechanical switch keys for best feedback Anti-ghosting for simultaneous key strokes 6 additional gaming keys with on-the-fly macro recording Easy to use software change settings and preferences One USB 2.0 pass-through, 3.5mm mic-in, 3.5mm speaker-out, 3.5mm combo jack adapter Detachable palm rest design Red backlighting with 4 adjustable brightness levels