Kinesis Corporation KB800PB-US The Kinesis Freestyle2 Keyboard Offers Up To 9 Inches Of Complete Separation & Kingston DataTraveler SE9 8GB USB 2.0 & Jestik Microfiber- VALUE BUNDLE Compatible operating systems Windows 2000, XP, Vista, Windows 7 and Windows 8 Sun & Linux Peak force: 44 grams Activation force: 35 grams Travel distance: 3.9 mm Switch type: Rubber dome, membrane