The Tactile Pro Keyboard from Matias uses the same legendary ALPS Mechanical Switch as the original Apple Extended Keyboard and many IBM keyboards. These high quality mechanical keyswitches are both audible and tactile, improving feedback which improves keying performance. The Tactile Pro has been redesigned for comfort, strength, and better resistance to crumbs and dust. In addition, the keys are sculpted (not flat) for better key accuracy and maintaining your hands on the home row. Included is a 3-port hi-speed USB 2.0 hub and special Anti-Ghosting circuitry, which enables you to type as fast as you need to without dropping letters. On the PC Model, Matias has even thoughtfully included an additional Tab key on the numeric keypad to optimize moving between fields while performing numeric data entry. This keyboard is available in a white model legended and designed for Mac users and a black model with familiar PC legending.