The E03601U keyboard is designed with the most popular key layout that features the Microsoft left and right Windows keys and application key, as well as a large L shape Enter key. Now in a USB version, you will also get the expertise behind Key Tronic Corporation.This product also features the patent Ergo Technology. Most keyboards use a standard 55 grams of force required to register every key, Ergo Technology has 5 different levels of force. From 35 grams to 80 grams - that correspond to the strength of the finger that touches the keys. The result is more comfort for your hands.