COMPACT DESIGN - Mini keyboard design without number keypad area and built-in 0.55 inch optical trackball is perfect for minimizing the space taken up by the traditional keyboard and mouse. COMFORTABLE TYPING EXPERIENCE - The 87 membrane short distance keys require less finger pressure and stretching for typing. This makes the typing experience comfortable and efficient. SPACE-SAVING - Combining keyboard and mouse all-in-one makes this keyboard the perfect fit for various industrial and professional uses, especially for laboratories and factories/warehouses. LOGO-FREE DESIGN - Periboard is a compact, logo-free keyboard that is suitable for project integration and many more industrial applications. The size of the keyboard makes it perfect for 19’ drawers solutions or Kiosk applications. BUILT-IN USB HUBS - Convenient design with 2 extra USB 2.0 ports to connect to your input devices. System requirements: Windows 7, 8, and 10 and above