●Connectivity: wired USB ●Number of keys:104/105 ●Key force: 50±7g ●Key lifespan:10 million keystrokes ●Product weight: 385g ●Product size：445mm x (W) 136mm x (H)26mmmm ●Rated voltage/current: DC 5V /≤140mA ●Operating platform: Windows XP/ Vista/7/ 8/10/11
