The DellTM KB212-B USB 104 Quiet Key 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 standard set of 104 keys 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. Features 1. Acoustic - Quiet and good tactile feel 2. Ergonomic - Adjustable tilt 3. Sturdy - No rocking of keyboard during normal use 4. Stable - 6 rubber pads to avoid sliding during normal usage