WD Blue SATA Hard Drives Solid Performance Ultra-cool and Quiet. Keeping the drive cool enhances reliability. WD continues to develop and innovative ways to keep drives cool while they are operating which helps protect the drive and the data stored on it. Ideal for anyone seeking performance and reliability for everyday computing. SATA - Serial ATA (SATA) hard drives are quickly becoming the new standard. Motherboard manufacturers now include SATA inputs on their boards. Because of their considerably narrower cables, SATA hard drives provide increased airflow and less clutter and in the computer system.