Interface USB 2.0 Activation Flaretech Optical-Mechanical Switch Type Red/Blue Switch life 100 Million Strokes Key Profile Standard Travel distance 4mm Activation Distance 2mm Peak force Red : 55g +/- 10g Blue: 55g +/- 10g Dimension 439(L) x 140(W) x 37(H) mm 17.3(L) x 5.5(W) x 1.5(H) inch Weight 1180g (2.6lb) Cable length 2m Software AORUS Engine OS Support Windows 7/8/10 Simultaneous Key input N-Key Rollover Report Rate max 1000Hz Backlighting 16.7M Color Per-Key