The 6101 Series keyboard with Windows keys is designed to offer users a more convenient and efficient interface with the Windows operating system. Its unique center-bearing switch technology offers both a superior user interface and enhanced product reliability. Discover the Key Tronic difference -- with the 6101 Series Windows compatible keyboard. The E06101USB-C has the Key Tronic 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.