K40D Mechanical keyboard

Actuation Force (Fp): 55 ± 5 g
Spring Force (Fr): 18 g min.
Actuation Travel (Tc): 2.0 ± 0.2 mm
Tactile Feedback Ratio = (Fp – Fc) / Fp × 100%: 45%–60%
Total Travel (120 g): 30 ± 0.5 mm
Number of keys: 104
System requirements: Windows 2000/XP/VISTA/7/8/10

Size:440×130×35 mm