Keyswitch Technology Mechanical Keyboard/Keypad Connectivity Technology Cable Number of Keys 104 Keys Layout QWERTY Localization English US Localization International Keyboard/Keypad Host Interface USB Color Light Gray Keyboard/Keypad Height 1.73 Keyboard/Keypad Width 18.50 Keyboard/Keypad Depth 7.68 Weight Approximate 2.06 lb Package Contents MX BOARD SILENT Keyboard Printed Instructions Adapter USB socket on PS/2 plug Platform Supported Mac Platform Supported PC Device Supported Computer Environmentally Friendly Yes Environmental Certification GS Country of Origin Germany TAA Compliant Yes Limited Warranty 2 YearPackage Contents MX BOARD SILENT Keyboard Printed Instructions Adapter USB socket on PS/2 plug