Unique Dual Air Vent Design Provides Cooling and Stability The U2442F has a dual air vent design (one for CPU and one for GPU) that efficiently eliminates heat and keeps noise to a minimum. Despite the powerful features and thin form factor, the unique venting system is able to effectively keep the notebook from overheating. Backlit Keyboard with Auto Adjustment The U2442F boasts an automatic light sensing backlit keyboard. This excellent feature adjusts the light to external conditions and allows you to get work done even under low light conditions.