The Dell KB212-B USB QuietKey Keyboard is designed ergonomically to maximize your comfort and productivity with sturdy and robust quiet key design for everyday business and personal usage. This keyboard features a USB interface and its durability has been constructed for a long life span of repetitive use. This product has been tested and validated on Dell systems. It is supported by Dell Technical Support when used with a Dell system. This product is compatible with the following systems: - Latitude 3330 - Latitude 3440 - Latitude 3540 - OptiPlex 3010 - OptiPlex 7010 - OptiPlex 9010 - OptiPlex 9010a.